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sitors
Semiconductor Protection Fuses
ENGINEERING
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Now even more application possibilities In all facets of semiconductorprotection
For decades now, SITOR semiconductor protection fuses have been reliablyprotecting converters, rectifiers, UPS systems and many more devices against
short-circuit as well as cables against overload. In order to fulfill market
requirements, we have extended our program by ultra-fast cylindrical fuses. This
means that now more applications can be reliable protected using the well-proven
SITOR product range.
The advantages of SITOR semiconductor protection fuses at a glance
Extremely fast interruption of currents
Unique combination of semiconductor protection and cable protection minimizes
costs, the space require and the installation costs
DIN and special designs for almost all applications
Rated fuses currents from 1 to 1250 A
High cyclic load capacity ensures ageing-free operation
Available with characteristics aR, gR and gS
Ultra-fast cylindrical fuses with a wide range of accessories are now available
They can be quickly supplied thorugh our central warehouse in Amberg
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1
SITOR
SemiconductorProtection Fuses
Selection andEngineering Documents
Order No.: 3ZX1015-0NC00-1AB1
Edition 05/2003
Applicationsand Standards
Ordering andEngineering Data
Characteristicsand Dimension Drawings
Technical Descriptionand Terminology
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2
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3
Applicationsand Standards
FeaturesPossible arrangements
Standards
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4
ApplicationsFeatures
SITOR fuse links protect converters against short-circuit.
The power semiconductors used in these devices (diodes, thyristors, GTOs
and others) require fast-switching elements to protect them as a result of
their low thermal capacity. SITOR fuse links are admirably suited for this
type of application (fuse links for semiconductor protection with super-fast
characteristics).
The following fault situations involving
short-circuits can occur:
Internal short-circuit:A defective semiconductor compo-
nent causes a short-circuit within the
converter
External short-circuit:
A fault in the load causes a short-cir-
cuit at the output of the converter
Inverter commutation faults:
If the converter control fails when in
the inverter mode (commutation
faults), then the converter circuit
forms a short-circuit connection be-
tween the DC voltage and AC voltagesupply.
Fuse links can be arranged in various
ways within the converter circuit. A dif-
ferentiation is made between the phasefuses in the three-phase feeder cables
as well as, if required, DC current fuses
and branch fuses in the branches of the
converter circuit (diagrams 5-1 to 5-6).
For center-tap circuit configurations,
fuse links can only be located in the
three-phase feeder cables as phase
fuses.
When using SITOR fuse links, utilizationCategory aR, the overload protection of
the converters up to approx. 350% of
the rated current is handled using
conventional protective devices (e.g.
thermally delayed overload relays).
For closed-loop converters, overload
protection is provided by the current
limiting (exception: general-purpose
fuses).
3NE1...-0 SITOR fuse links, utilization
Category gS are, in addition to providing
semiconductor protection, also de-signed for overload and short-circuit
protection for cables, conductors and
busbars. All of the other double func-
tion fuses belonging to the SITOR series
have gR characteristics. Overload pro-
tection is guaranteed if the rated cur-
rent of the 3NE1..-0 SITOR fuse link is
selected corresponding to InIz(DIN VDE 0100 Part 430).
The rules as laid-down in DIN VDE 0100
Part 430 must be applied when dimen-
sioning the fuse links to provideshort-circuit protection for cables, con-
ductors and busbars.
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5
ApplicationsPossible arrangements
Fig.5-1
Six-pulse bridge circuit B6with branch fuses
DA94-5048
Fig.5-2
Six-pulse bridge circuit B6with phase fuses and DC fuses(reversing connection)
DA94-5051
( ) ( )
Fig.5-3
Six-pulse bridge circuit B6with phase fuses and DC fuses(converter circuit)
DA94-5050
Fig.5-4
Six-pulse bridge circuit B6with branch fuses
DA94-5049
Fig.5-5
Six-pulse bridge circuit B6with branch fuses(reversing connection)
DA94-5052
( ) ( )
Fig.5-6
Three-phasebidirectional circuit W3with phase fuses with branch fuses
DA94-5053
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6
Important Information
StandardsSITOR fuse links comply with the follow-
ing Standards and regulations:
DIN VDE 0636, Part 40
IEC 60 269-4
When appropriately noted in Sections 2
and 3 Ordering and engineering dataand Characteristics and dimensiondrawings, SITOR fuse links also fulfillthe following Standards and regula-
tions:
IEC 60 269-2-1
VDE 0636/201
(for insertion in l.v.h.b.c. fuse bases
according to VDE 0636/201 as well as
in fused-switch disconnectors and dis-
connectors with fuses)
u
The following Sitor fuse links and
l.v.h.b.c. fuse bases areu recognized:
IEC 60 269-4-1VDE 0636/401
(for bolting to busbars) SITOR fuse
links, Sizes 1 to 3 with an inside cali-
per of 110 mm can also be inserted in
l.v.h.b.c. fuse bases according to
IEC 60 269-2-1 as well as in fused
switch disconnectors and switch dis-
connectors with fuses.
All of the SITOR fuse links with rated
voltages Vn1000 V have the CEmarking in compliance with the
Low-Voltage Directive 73/23/EEC. The
CE marking confirms that the products
are in compliance with the require-
ments as laid down in the Directive.
Environmentally-friendlyrecycling
In 1995, seven German manufacturers
of l.v.h.b.c./h.v.h.b.c. fuse links founded
a non-profit association.
l.v.h.b.c./h.v.h.b.c.Recycling
The objective is to practically and sensi-
bly recycle fuse links and to define an
acceptable disposal concept which ful-
fills all of the requirements of today's
environmental protection legislation.
The used fused links are collected,
sorted and then recycled without the
packaging; materials which have been
melted and recovered are then recycled.
According to the rules and regulations
of the association, excess funds from
the recycling process are donated to a
university to promote research in the
area of fuse links.More detailed information is available
under:
http://www.nh-hh-recycling.de
Series Guidenumber
Filenumber
3NC1 0..3NC1 4..
3NC2 2..
3NE1 ...
3NE3 2..
3NE3 3..
3NE4 1..
3NE8 0..-1
3NE8 7..-1
JFHR2 E167357
3NC1 1.. JDDZ E223216
3NC1 038-.
3NC1 09.
3NC1 49.
3NC2 29.
IZLT2 E220063
3NH3 0303NH3 120
3NH3 230
3NH3 330
3NH3 430
JFHR2 E171267
3NC1 451-1
3NC2 258-1
being
processed
being
processed
NH HH
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7
Liability exclusionThe products described here were
developed as part of a complete system
or machine to assume safety-related
functions. Generally, a complete
safety-related system includes sensors,
evaluation units, signaling devices and
concepts for safe shutdown. It is the
responsibility of the manufacturer of a
plant or machine to ensure that his
complete plant or machine functions
correctly. Siemens AG, its regional
offices and associated companies(known in the following as "Siemens")
are able to guarantee all of the proper-
ties and characteristics of a complete
plant or machine which Siemens itself
did not design.
Siemens does not accept any liability for
the recommendations which are either
provided or implicitly provided in the
following document. The information in
this document does not represent a new
guarantee, warranty or liability claims
which extend beyond Siemens generalconditions of supply.
CautionOnly fully authorized and trained
personnel may install and use fuses.
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8
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9
Ordering andEngineering Data
SITOR fuse linksSITOR fuse links for special applications
Accessories for l.v.h.b.c fuses
Accessories for cylindrical fuses
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10
Ordering and Engineering Data
2.1 SITOR fuse linksOrder No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NC2 4233)
3NC2 4253)
3NC2 4273)
3NC2 4283)
3NC2 4313)
3NC2 4323)
0.95
0.95
0.95
0.95
0.95
0.95
500
500
500
500
500
500
150
200
250
300
350
400
33000
64000
99000
132000
249000
390000
3NC2 423-33NC2 425-33NC2 427-33NC2 428-33NC2 431-33NC2 432-3
0.950.95
0.95
0.95
0.95
0.95
500500
500
500
500
500
150200
250
300
350
400
3300064000
99000
132000
249000
390000
3NC8 4233)
3NC8 4253)
3NC8 4273)
3NC8 4313)
3NC8 4343)
0.95
0.95
0.95
0.95
0.95
660
660
660
660
660
150
200
250
350
500
17600
38400
70400
176000
448000
3NC8 423-33NC8 425-33NC8 427-3
3NC8 431-33NC8 434-33NC8 444-3
0.95
0.95
0.95
0.950.95
0.95
660
660
660
660660
600
150
200
250
350500
1000
17600
38400
70400
176000448000
2480000
3NE3 2212)
3NE3 2222)
3NE3 2242)
3NE3 2252)
3NE3 2272)
3NE3 230-0B2)
3NE3 2312)
3NE3 232-0B2)
3NE3 2332)
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
1000
1000
1000
1000
1000
1000
1000
1000
1000
100
125
160
200
250
315
350
400
450
4800
7200
13000
30000
48000
80000
100000
135000
175000
Table
10-1
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-1
2) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards
3) Special version with 2 longitudinal slots (not shown in the diagram)
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11
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
7000
13600
21000
28000
53000
83000
35
40
50
65
60
50
gR
gR
gR
gR
aR
aR
0.85
0.85
0.85
0.85
0.85
0.85
3
3
3
3
3
3
3.1.1
3.1.1
3.1.1
3.1.1
3.1.1
3.1.1
700013600
21000
28000
53000
83000
3540
50
65
60
50
gRgR
gR
gR
aR
aR
0.850.85
0.85
0.85
0.85
0.85
31)
3 1)
3 1)
3 1)
3 1)
3 1)
110110
110
110
110
110
3.1.13.1.1
3.1.1
3.1.1
3.1.1
3.1.1
1100
2400
4400
11000
28000
40
50
72
95
130
gR
gR
gR
gR
gR
0.85
0.85
0.85
0.85
0.85
3
3
3
3
3
3.1.4
3.1.4
3.1.4
3.1.4
3.1.4
1100
2400
4400
1100028000
400000
40
50
72
95130
140
gR
gR
gR
gRgR
aR
0.85
0.85
0.85
0.850.85
0.9
3 1)
3 1)
3 1)
3 1)3 1)
3 1)
110
110
110
110110
110
3.1.4
3.1.4
3.1.4
3.1.43.1.4
3.1.4
665
1040
1850
4150
6650
13400
16600
22600
29500
28
36
42
42
50
65
75
85
95
aR
aR
aR
aR
aR
aR
aR
aR
aR
0.95
0.95
1
1
1
0.95
0.9
0.9
0.9
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
110
110
110
110
110
110
110
110
110
3.1.14
3.1.14
3.1.14
3.1.14
3.1.14
3.1.15
3.1.15
3.1.15
3.1.15
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12
Order No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE3 332-0B2)
3NE3 3332)
3NE3 334-0B2)
3NE3 3352)
3NE3 336 2)
3NE3 337-82)
3NE3 338-82)
3NE3 340-8 2)
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
1000
1000
1000
1000
1000
900
800
690
400
450
500
560
630
710
800
900
135000
175000
260000
360000
600000
800000
850000
1300000
3NE3 4213NE3 4303NE3 4323NE3 4343NE3 6263NE3 6353NE3 635-64)
3NE3 636
3NE3 6373NE3 637-1
1.15
1.15
1.15
1.15
1.15
1.15
1.15
1.15
1.151.15
1000
1000
1000
1000
1000
1000
1000
1000
10001000
100
315
400
500
224
450
450
630
710710
13500
218000
364000
870000
54000
488000
488000
1280000
19500001950000
3NE4 1012)
3NE4 1022)
3NE4 1172)
3NE4 1182)
3NE4 1202)
3NE4 1212)
3NE4 1222)
3NE4 1242)
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
1000
1000
1000
1000
1000
1000
1000
1000
32
40
50
63
80
100
125
160
280
500
800
1500
3000
6000
14000
29000
3NE4 327-0B3NE4 330-0B3NE4 333-0B3NE4 334-0B
3NE4 337
0.7
0.7
0.7
0.7
0.7
800
800
800
800
800
250
315
450
500
710
29700
60700
191000
276000
923000
Table12-2
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-1
2) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards3) M12
4) Diagram, refer to Section 4.2, 3NE6 4.., 3NE9 4..
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13
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
22600
29500
46100
66400
104000
149000
184000
223000
85
90
90
95
100
105
130
165
aR
aR
aR
aR
aR
aR
aR
aR
1
1
1
1
1
1
0.95
0.95
2 1)
2 1)
2 1)
2 1)
2 1)
2 1)
2 1)
2 1)
110
110
110
110
110
110
110
110
3.1.16
3.1.16
3.1.16
3.1.16
3.1.16
3.1.16
3.1.16
3.1.16
1800
29000
48500
116000
7200
65000
65000
170000
260000260000
25
80
110
95
85
110
110
132
145145
aR
aR
aR
aR
aR
aR
aR
aR
aRaR
1
1
1
1
1
1
1
1
11
3
3
3
3
3
3
3
3
33
130
130
130
130
130
130
139
130
130140 3)
3.1.17
3.1.17
3.1.17
3.1.17
3.1.17
3.1.17
3.1.17
3.1.17
3.1.173.1.17
40
75
120
230
450
900
1800
3600
12
13
16
20
22
24
30
35
gR
gR
gR
aR
aR
aR
aR
aR
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0
0
0
0
0
0
0
0
3.1.13
3.1.13
3.1.13
3.1.13
3.1.13
3.1.13
3.1.13
3.1.13
3600
7400
29400
42500
142000
105
120
140
155
155
aR
aR
aR
aR
aR
0.85
0.85
0.85
0.85
0.95
2 1)
2 1)
2 1)
2 1)
2 1)
110
110
110
110
110
3.1.12
3.1.12
3.1.12
3.1.12
3.1.12
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14
Order No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE5 4243NE5 4263NE5 4303NE5 4313NE5 4333NE5 433-1
1.95
1.95
1.95
1.95
1.95
1.95
1500
1500
1500
1500
1500
1500
160
224
315
350
450
450
54000
138000
311000
428000
870000
870000
3NE5 6273NE5 6333NE5 643
1.6
1.6
1.6
1500
1500
1500
250
450
600
84000
590000
1950000
3NE1 813-01)
3NE1 814-01)
3NE1 815-01)
3NE1 803-01)
3NE1 802-01)
3NE1 817-01)
3NE1 818-01)
3NE1 820-01)
0.13
0.130.13
0.13
0.13
0.13
0.13
0.13
690
690690
690
690
690
690
690
16
2025
35
40
50
63
80
200
430780
1700
3000
4400
9000
18000
3NE1 021-0 1)
3NE1 022-01)
3NE1 022-21)
0.2
0.2
0.2
690
690
690
100
125
125
33000
63000
23000
3NE1 224-01)
3NE1 225-01)
3NE1 227-01)
3NE1 230-01)
0.550.55
0.55
0.55
690690
690
690
160200
250
315
60000100000
200000
310000
3NE1 224-21)
3NE1 225-21)
3NE1 227-21)
3NE1 230-2 1)
0.55
0.55
0.55
0.55
690
690
690
690
160
200
250
315
15840
44000
68800
135500
Table14-3
1) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards
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15
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
7200
18400
41500
57000
116000
116000
56
80
115
135
145
145
aR
aR
aR
aR
aR
aR
1
1
1
1
0.95
0.95
3
3
3
3
3
3
210
210
210
210
210
210
3.1.18
3.1.18
3.1.18
3.1.18
3.1.18
3.1.18
11200
78500
260000
130
160
145
aR
aR
aR
1
1
1
3
3
3
170
170
170
3.1.19
3.1.19
3.1.19
18
4174
166
295
461
903
1843
3
3.54
5
5
6
7
8
gR/gS
gR/gSgR/gS
gR/gS
gR/gS
gR/gS
gR/gS
gR/gS
1
11
1
1
1
1
1
000
000000
000
000
000
000
000
3.1.5
3.1.53.1.5
3.1.5
3.1.5
3.1.5
3.1.5
3.1.5
3100
6000
3115
10
11
13.5
gR/gS
gR/gS
gR
1
1
1
00
00
00
3.1.6
3.1.6
3.1.9
740014500
29500
46100
2427
30
38
gR/gSgR/gS
gR/gS
gR/gS
11
1
1
11
1
1
3.1.63.1.6
3.1.6
3.1.6
2650
5645
11520
22580
30
28
35
42
gR
gR
gR
gR
1
1
1
1
1
1
1
1
3.1.9
3.1.9
3.1.9
3.1.9
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16
Order No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE1 331-02)
3NE1 332-02)
3NE1 333-02)
3NE1 334-02)
0.7
0.7
0.7
0.7
690
690
690
690
350
400
450
500
430000
590000
750000
950000
3NE1 331-22)
3NE1 333-22)
3NE1 334-22)
0.7
0.7
0.7
690
690
690
350
450
500
177000
276000
398000
3NE1 435-02)
3NE1 436-02)
3NE1 437-02)
3NE1 438-02)
0.95
0.95
0.95
0.95
690
690
690
690
560
630
710
800
1700000
2350000
3400000
5000000
3NE1 437-12)
3NE1 438-12)0.95
0.95
600
600
710
800
2460000
3350000
3NE1 435-22)
3NE1 436-22)
3NE1 447-22)
3NE1 437-22)
3NE1 438-22)
3NE1 448-22)
1
11
1
1
1
690
690690
690
690
690
560
630670
710
800
850
845000
13200001557000
1725000
2348000
3381000
3NE7 4253NE7 4273NE7 4313NE7 4323NE7 6333NE7 633-13NE7 648-13NE7 6363NE7 636-13NE7 637-1
1.95
1.95
1.95
1.95
1.95
1.95
1.95
1.95
1.95
1.95
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
200
250
350
400
450
450
525
630
630
710
138000
218000
555000
870000
960000
960000
1120000
1950000
1950000
3110000
3NE9 632-13NE9 634-13NE9 636-1A
2.5
2.5
2.5
2500
2500
2500
400
500
630
620000
1270000
2800000
Table16-4
1) M12
2) urecognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards
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17
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
58000
84000
104000
149000
42
45
53
56
gR/gS
gR/gS
gR/gS
gR/gS
1
1
1
1
2
2
2
2
3.1.7
3.1.7
3.1.7
3.1.7
29500
46100
66400
44
62
65
gR
gR
gR
1
1
1
2
2
2
3.1.9
3.1.9
3.1.9
215000
293000
437000
723000
50
55
60
59
gR/gS
gR/gS
gR/gS
gR/gS
1
1
1
1
3
3
3
3
3.1.7
3.1.7
3.1.7
3.1.7
321000
437000
65
72
gR
gR
1
1
3
3
3.1.8
3.1.8
130100
203000240000
265000
361000
520000
60
6265
72
82
76
gR
gRgR
gR
gR
gR
1
11
1
1
1
3
33
3
3
3
3.1.10
3.1.103.1.10
3.1.10
3.1.10
3.1.10
18400
29000
74000
116000
128000
128000
149000
260000
260000
415000
75
110
120
150
160
160
210
220
220
275
aR
aR
aR
aR
aR
aR
aR
aR
aR
aR
1
1
1
1
1
1
1
1
1
1
3
3
3
3
3
3
3
3
3
3
210
210
210
210
210
210 1)
210 1)
210
210 1)
210 1)
3.1.20
3.1.20
3.1.20
3.1.20
3.1.20
3.1.20
3.1.20
3.1.20
3.1.20
3.1.20
81000
170000
385000
205
235
275
aR
aR
aR
1
1
1
3
3
3
260 1)
260 1)
260 1)
3.1.21
3.1.21
3.1.21
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18
Order No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE8 015-11)
3NE8 003-11)
3NE8 017-11)
3NE8 018-11)
3NE8 020-11)
3NE8 021-11)
3NE8 022-11)
3NE8 024-11)
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
690
690
690
690
690
690
690
690
25
35
50
63
80
100
125
160
180
400
700
1400
2400
4200
6500
13000
3NE8 714-13NE8 715-13NE8 701-13NE8 702-13NE8 717-13NE8 718-13NE8 720-13NE8 721-1
3NE8 722-13NE8 724-13NE8 725-13NE8 727-13NE8 731-1
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.130.13
0.13
0.13
0.13
690
690
690
690
690
690
690
690
690690
690
690
690
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)700 1)
700 1)
700 1)
700 1)
20
25
32
40
50
63
80
100
125160
200
250
315
83
140
285
490
815
1550
2700
4950
910017000
30000
55000
85500
3NC1 0033NC1 0063NC1 0083NC1 0103NC1 0123NC1 0163NC1 0203NC1 0253NC1 032
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
600
600
600
600
600
600
600
600
600
400
400
400
400
400
400
400
400
400
3
6
8
10
12
16
20
25
32
8
30
50
70
120
150
260
390
600
3NC1 1033NC1 105
0.010.01
600600
35
Table18-5
1) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards2) CLASS CC
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19
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
30
70
120
260
450
850
1400
2800
7
9
14
16
19
22
28
38
gR
gR
gR
gR
aR
aR
aR
aR
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
00
00
00
00
00
00
00
00
3.1.11
3.1.11
3.1.11
3.1.11
3.1.11
3.1.11
3.1.11
3.1.11
12
19
40
69
115
215
380
695
12502350
4200
7750
12000
7
9
10
12
15
16
19
24
2832
37
42
55
gR
gR
gR
gR
gR
aR
aR
aR
aRaR
aR
aR
aR
0.9
0.9
0.9
0.9
0.9
0.95
0.9
0.95
0.950.9
0.9
0.9
0.85
000
000
000
000
000
000
000
000
000000
000
000
000
80
80
80
80
80
80
80
80
8080
80
80
80
3.1.2
3.1.2
3.1.2
3.1.2
3.1.2
3.1.2
3.1.3
3.1.3
3.1.33.1.3
3.1.3
3.1.3
3.1.3
3
4
6
9
15
25
34
60
95
1.2
1.5
2
2.5
3
3.5
4.8
6
7.5
aR
aR
aR
aR
aR
aR
aR
aR
aR
10 x 38
10 x 38
10 x 38
10 x 38
10 x 38
10 x 38
10 x 38
10 x 38
10 x 38
3.1.22
3.1.22
3.1.22
3.1.22
3.1.22
3.1.22
3.1.22
3.1.22
3.1.22
2.52
2)
2)
10 x 3810 x 38
3.1.233.1.23
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20
Order No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NC1 4013NC1 4023NC1 4033NC1 4043NC1 4053NC1 4063NC1 4103NC1 4153NC1 4203NC1 4253NC1 4303NC1 4323NC1 4403NC1 450
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
660
660
660
660
690
690
690
690
690
690
690
690
690
690
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
1
2
3
4
5
6
10
15
20
25
30
32
40
50
11
22
22
60
130
150
800
980
1800
3NC1 5043NC1 506
3NC1 516
0.02
0.02
0.02
690
690
690
4
6
16
3NC2 2203NC2 2253NC2 2323NC2 2403NC2 2503NC2 2633NC2 2803NC2 200
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
690
690
690
690
690
690
690
600
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
20
25
32
40
50
63
80
100
370
560
850
1350
1120
2700
5100
10000
Table20-6
1) u Recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards
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21
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
1.6
3.6
10
26
44
58
95
110
220
5
3
2.5
1.5
1.5
4
5.5
6
7
9
7.6
8
9
aR
aR
aR
aR
aR
aR
aR
aR
aR
aR
aR
aR
aR
aR
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
14 x 51
3.1.24
3.1.24
3.1.24
3.1.24
3.1.24
3.1.24
3.1.24
3.1.25
3.1.25
3.1.25
3.1.25
3.1.25
3.1.25
3.1.25
gG
gG
gG
14 x 51
14 x 51
14 x 51
3.1.26
3.1.26
3.1.26
34
60
95
185
155
310
620
1250
4.6
5.6
7
8.5
9.5
11
13.5
16
aR
aR
aR
aR
aR
aR
aR
aR
22 x 58
22 x 58
22 x 58
22 x 58
22 x 58
22 x 58
22 x 58
22 x 58
3.1.27
3.1.27
3.1.27
3.1.27
3.1.27
3.1.27
3.1.27
3.1.27
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22
2.2 SITOR fuse links for special applications
Order No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NC5 5311)
3NC5 838 1)
3NC5 840 1)
3NC5 841 1)
0.671.2
1.4
1.2
8001000
1000
800
350800
600
630
2600001728000
888000
888000
3NC7 327-2 2)
3NC7 331-2 2)0.7
0.7
680
680
250
350
635000
1430000
3NE3 525-53)
3NE3 535-53)0.70.7
10001000
200450
44000395000
3NE4 117-54)
3NE4 121-54)
3NE4 146-54)
0.28
0.28
0.28
1000
1000
800
50
100
170
1100
7400
60500
Table22-7
1) For rectifiers in electrolysis systems (these are screwed onto water-cooled busbars)2) For traction feeder rectifiers
3) For SITOR thyristor sets 6QG10
4) For SITOR thyristor sets 6QG11
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23
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
66000360000
185000
185000
80170
150
145
aRaR
aR
aR
0.90.9
0.9
0.9
3.2.33.2.3
3.2.3
3.2.3
244000
550000
25
32
aR
aR
0.9
0.9
3.2.5
3.2.5
715064500
5090
aRaR
0.850.85
3.2.13.2.1
135
900
7370
20
35
43
gR
aR
aR
0.85
0.85
0.85
3.2.1
3.2.1
3.2.1
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24
Order No. Weight
kg
Rated voltage
Vn
Rated current Clearing
I 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE4 327-6B1)
3NE4 330-6B1)
3NE4 333-6B1)
3NE4 334-6B1)
3NE4 337-61)
0.65
0.65
0.65
0.65
0.65
800
800
800
800
800
250
315
450
500
710
29700
60700
191000
276000
923000
3NE6 4372)
3NE6 4442)
3NE9 440-62)
3NE9 4502)
1.0
1.1
1.0
1.0
900
900
600
600
710
900
850
1250
620000
1920000
2480000
2480000
3NE6 437-73)
3NE9 450-73)
1.0
1.0
900
600
710
1250
620000
2480000
Table24-8
1) For SITOR thyristor sets 6QG12
2) For air-cooled rectifiers in electrolysis systems
3) For rectifiers in electrolysis systems (these are screwed onto water-cooled busbars)
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25
Pre-arcing
I 2t valuePower loss Utilization
category
Cyclic load
factor
WL
Size according
to IEC/EN 60 269-2-1
or VDE 0636/201
(or DIN 43 620)
Inside caliper
according
to IEC/EN 60 269-4-1
or VDE 0636/401
(or DIN 43 653)
Characteris-
tics and
dimension
drawings
A2s W mm Section
3600
7400
29400
42500
142000
105
120
140
155
155
aR
aR
aR
aR
aR
0.85
0.85
0.85
0.85
0.95
3.2.2
3.2.2
3.2.2
3.2.2
3.2.2
100000
400000
400000
400000
150
170
85
210
gR
aR
gR
aR
0.9
0.9
1
0.9
3.2.4
3.2.4
3.2.4
3.2.4
100000
400000
150
210
aR
aR
0.9
0.9
3.2.4
3.2.4
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26
2.3 Accessories for l.v.h.b.c fuses
Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITOR
fuse link
Rated
current
Required
cross-section of
cables/busbars
l.v.h.b.c. fuse base Suitable
puller
Fuse switch
disconnector
Switch disconnector
with fuses
Order No.
In
A mm2
Cu Order No.
max.
current
A Order No. Order No.
max.
current
A Order No.
max.
current
A3NC2 423/-33NC2 425/-33NC2 427/-33NC2 428/-33NC2 431/-33NC2 432/-3
150
200
250
300
350
400
70
95
120
185
240
240
3NH3 430 2) 3) 150190
240
285
330
400
3NX1 011 3NP5 4 145180
225
255
330
400
3KL61 30 145180
225
255
330
400
3NC8 423/-33NC8 425/-33NC8 427/-33NC8 431/-33NC8 434/-3
150
200
250
350
500
70
95
120
240
2 x 150
135
180
250
315
450
135
180
225
300
425
135
180
225
300
425
Table26-9
1) When maintaining pollution degree 2 according to DIN VDE 0660 Part 100, the rated insulation voltage of 3KL, 3KM and 3NP
switch disconnectors (designed for degree of pollution 3) is 1000 V
2) The maximum currents are valid for natural air cooling. With forced cooling v 1 m/s the fuses can be used withrated current In.
3) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards
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27
Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITOR
fuse link
Rated
current
Required
cross-section of
cables/busbars
l.v.h.b.c. fuse base Suitable
puller
Fuse switch
disconnector
Switch disconnector
with fuses
Order No.
In
A mm2
Cu Order No.
max.
current
A Order No. Order No.
max.
current
A Order No.
max.
current
A3NE1 813-0
3NE1 814-0
3NE1 815-0
3NE1 803-0
3NE1 802-0
3NE1 817-0
3NE1 818-0
16
20
25
35
40
50
63
1.5
2.5
4
6
10
10
16
3NH3 0301)/
3NH4 030
16
20
25
35
40
50
63
3NX1 011 3NP4 0/
3NP5 0
16
20
25
35
40
50
63
3KL50 30/
3KM50 30
16
20
25
35
40
50
63
3NE1 820-0 80 25 80 80 3KL52 30/
3KM52 30
80
3NE1 021-0
3NE1 022-0
100
125
35
50
100
125
3NP4 0/
3NP5 0
100
125
100
125
3NE1 224-0
3NE1 225-03NE1 227-0
160
200250
70
95120
3NH3 2301)/
3NH4 230
160
200250
3NP4 2/
3NP5 2
160
200250
3KL55 30/
3KM55 30
160
200250
3NE1 230-0
3NE1 331-0
3NE1 332-0
315
350
400
2 x 70
2 x 95
2 x 95
3NH3 3301) 315
350
400
3NP5 3 315
350
400
3KL57 30/
3KM57 30
315
350
400
3NE1 333-0
3NE1 334-0
3NE1 435-0
3NE1 436-0
450
500
560
630
2 x 120
2 x 120
2 x 150
2 x 185
3NH3 4301) 450
500
560
630
3NP5 4 450
500
560
630
3KL61 30 450
500
560
630
3NE1 437-0
3NE1 438-0
3NE1 437-1
3NE1 438-1
710
800
710
800
2 x (50 x 5)
2 x (50 x 5)
2 x (50 x 5)
2 x (50 x 5)
3NH3 430
710
800
690
750
3NP5 4
3NP5 4
710
800
690
750
3KL62 710
800
710
800
3NE1 022-2 125 50 3NH3 030/
3NH4 030
125 3NP4 0/
3NP5 0
115/125 3KL52/
3KM52
125
3NE1 224-2
3NE1 225-2
3NE1 227-2
160
200
250
70
95
120
3NH3 230/
3NH4 230
160
200
250
3NP4 2/
3NP5 2
160
190/200
235/250
3KL55
3KM55
145
180
220
3NE1 230-2
3NE1 331-2
315
350
2 x 70
2 x 95
3NH3 330 315
350
3NP5 3 315
350
3KL57/
3KM57
280
300
Table
27-10
1) u recognized (U), for Guide Nos. and File Nos. of the Approval,
refer to Section 1 Applications and Standards
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28
Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITOR
fuse link
Rated
current
Required
cross-section of
cables/busbars
l.v.h.b.c. fuse base Suitable
puller
Fuse switch
disconnector
Switch disconnector
with fuses
Order No.
In
A mm2 Cu Order No.
max.
current
A Order No. Order No.
max.
current
A Order No.
max.
current
A
3NE1 333-23NE1 334-23NE1 435-23NE1 436-2
450500
560
630
2 x 1202 x 120
2 x 150
2 x 185
3NH3 430 450500
560
630
3NX1 011 3NP5 4
3NP5 4
450500
560
625
3KL61 450500
560
615
3NE1 447-23NE1 437-23NE1 438-23NE1 448-2
670
710
800
850
2 x (40 x 5)
2 x (40 x 5)
2 x (50 x 5)
2 x (30 x 8)
670
710
800
850
3NP5 43NP5 43NP5 4
655
685
770
820
3KL62 670700
760
790
3NE8 015-13NE8 003-13NE8 017-13NE8 018-1
25
35
50
63
4
6
10
16
3NH3 0301)/3NH4 030
25
35
50
63
3NP4 0/3NP5 0
25
35
45
55
3KL50 303KM50 30
25
35
45
55
3NE8 020-1
3NE8 021-13NE8 022-13NE8 024-1
80
100125
160
25
3550
70
80
100125
160
70
85100
130
3KL52 30/
3KM52 30
70
85100
130
3NE4 327-0B3NE4 330-0B
250
315
120
240
3NH3 3302) 240300
3NP5 3 190250
3KL57 30/3KM57 30
170
225
3NE4 333-0B3NE4 334-0B
450
500
40 x 8
40 x 8
3NH3 4302) 425475
3NP5 4 420450
3KL61 301) 370425
3NE4 337 710 50 x 10 630 600 3KL62 600
3NE4 1013NE4 1023NE4 1173NE4 118
3NE4 120
3NE4 1213NE4 1223NE4 124
32
40
50
63
80
100125
160
6
10
10
16
25
3550
70
3NH3 1202)/3NH4 230
32
40
50
63
80
100125
160
3NP4 21)/3NP5 2
32
40
50
63
80
95120
150
3KL55 30/3KM55 30
32
40
50
63
80
95120
150
Table28-11
1) When maintaining pollution degree 2 according to DIN VDE 0660 Part 100, the rated insulation voltage of 3KL, 3KM and 3NP
switch disconnectors (designed for degree of pollution 3) is 1000 V
2) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards
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Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITOR
fuse link
Rated
current
Required
cross-section of
cables/busbars
l.v.h.b.c. fuse base Suitable
puller
Fuse switch
disconnector
Switch disconnector
with fuses
Order No.
In
A mm2 Cu Order No.
max.
current
A Order No. Order No.
max.
current
A Order No.
max.
current
A
3NE3 2213NE3 2223NE3 2243NE3 2253NE3 227
100125
160
200
250
3550
70
95
120
3NH3 230 2)/3NH4 230
100125
160
200
250
3NX1 011 3NP4 2 1)/3NP5 2
90110
140
175
210
3KL55 30/3KM55 30
90110
140
175
210
3NE3 230-0B3NE3 2313NE3 232-0B3NE3 233
315
350
400
450
185
240
240
2 x 150
3NH3 330 2) 305335
380
425
3NP5 3 285310
330
360
3KL57 30/3KM57 30
240
265
290
320
3NE3 332-0B3NE3 3333NE3 334-0B3NE3 335
400
450
500
560
240
2 x 150
2 x 150
2 x 185
3NH3 430 2) 400450
500
560
3NP5 4 340380
450
510
3KL61 30 1) 340380
440
500
3NE3 3363NE3 337-83NE3 338-83NE3 340-8
630710
800
900
2 x 1852 x 200
2 x 200
2 x 240
630680
700
750
580630
630
630
3KL62 570640720
800
Table29-12
1) When maintaining pollution degree 2 according to DIN VDE 0660 Part 100, the rated insulation voltage of 3KL, 3KM and 3NP
switch disconnectors (designed for degree of pollution 3) is 1000 V
2) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 Applications and Standards
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2.4 Accessories for cylindrical fuses
Permissible load and required connection cross-sections when using in cylindrical fuse bases and switch disconnectors
SITOR
fuselink
Rated
current
Required
connection
cross-section Cylindrical fuse base
Fuse
puller
Cylindrical fuse disconnector
Order No.
In
A mm2 Cu
1-phase
Order
No.
Imax
A
2-phase
Order
No.
Imax
A
3-phase
Order
No.
Imax
A
Order
No.
1-phase
Order
No.
Imax
A
2-phase
Order
No.
Imax
A
3-phase
Order
No.
Imax
A
3NC1 0033NC1 0063NC1 0083NC1 0103NC1 0123NC1 0163NC1 0203NC1 0253NC1 032
3
6
8
10
12
16
20
25
32
1
1
1
1.5
1.5
2.5
2.5
4
6
3NC1038-1
3
6
8
10
12
16
20
25
32
3NC1038-2
3
6
8
10
12
16
20
24
28
3NC1038-3
3
6
8
10
12
16
20
24
28
3NC1000
3NC1091
3
6
8
10
12
16
20
25
32
3NC1092
3
68
10
12
16
20
25
30
3NC1093
3
6
8
10
12
16
20
25
29
3NC1 1033NC1 105
3
5
1
1
3
5
3
5
3
5
3
5
3
5
3
5
3NC1 4013NC1 4023NC1 4033NC1 4043NC1 4053NC1 4063NC1 4103NC1 4153NC1 4203NC1 4253NC1 4303NC1 4323NC1 440
3NC1 450
1
2
3
4
5
6
10
15
20
25
30
32
40
50
1
1
1
1
1
1
1.5
1.5
2.5
4
6
6
10
10
3NC1451-1
1
2
3
4
5
6
10
15
20
25
30
32
40
50
3NC1491
1
2
3
4
5
6
10
15
20
25
28
31
38
48
3NC1492
1
2
3
4
5
6
10
15
20
24
27
30
37
46
3NC1493
1
2
3
4
5
6
10
15
20
23
25
30
36
44
3NC1 5043NC1 5063NC1 516
4
6
16
1
1
2.5
4
6
16
4
6
16
4
6
16
4
6
16
3NC2 2203NC2 2253NC2 2323NC2 2403NC2 2503NC2 2633NC2 2803NC2 200
20
25
32
40
50
63
80
100
2.5
4
6
10
10
16
25
35
3NC2258-1
20
25
32
40
50
63
80
100
3NC2291
20
25
32
40
50
60
74
95
3NC2292
20
25
32
39
48
58
71
90
3NC2293
20
25
32
38
46
56
69
85
Table
30-13
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Characteristicsand Dimension Drawings
SITOR fuse linksSITOR fuse links for special applications
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Characteristics
3.1 SITOR fuse links
3.1.1 3NC2 4.. (IEC 60 269-2-1, Size 3), 3NC2 4..-3 (IEC 60 269-4-1, Size 3/110) 1)
Order No. 3NC2 4233NC2 423-3
3NC2 4253NC2 425-3
3NC2 4273NC2 427-3
3NC2 4283NC2 428-3
3NC2 4313NC2 431-3
3NC2 4323NC2 432-3
Utilization category (IEC 60 269) gR gR gR gR gR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body)
Power dissipation at InCyclic load factor WLWeight, approx.
V
A
A2s
A2s
K
W
kg
500
150 2)
7000
33000
26
35
0.85
0.95
500
200 2)
13600
64000
25
40
0.85
0.95
500
250 2)
21000
99000
30
50
0.85
0.95
500
300 2)
28000
132000
40
65
0.85
0.95
500
350 2)
53000
249000
35
60
0.85
0.95
500
400 2)
83000
390000
30
50
0.85
0.95
Accessories3)
Fuse base, 1-pole
Fuse pullerFused switch disconnector
Switch disconnector with fuses
3NH3 430
3NX1 0113NP54
3KL61 30-1.B0
Table34-14
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-1
2) Cooling air velocity 1 m/s. For natural air cooling, reduced by 5 %
3) Maximum current and minimum required connection cross-section when using fuse bases and
switch disconnectors, refer to Section 2.3
Fig.34-7
Time/current characteristics
2 4 6
A
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
4
6
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
s
vs
p
200A 300A 400A
150A 250A 350A
Virtua
lpre-arc
ing
time
Prospective short-circuit current
ADA94-5096b
Fig.34-8
Correction factor kA for clearing I2t value
Fig.
34-9
Arc voltage
0 100 200 300 400 500 600
V
1
A
wRecovery voltage
Correc
tion
fac
tor0.8
0.6
0.4
0.2
ADA94-5000b
0 200 400 600
V
800 1000 1200
400
800
1200
1600
2000
s
V
w
1400
1000
600
200
0
1800
Recovery voltage
Pea
karcvo
ltage
ADA94-5097b
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3NC2 4..
3NC2 4..-3
Fig.35-10
Let-through characteristics (current limiting at 50 Hz)
Fig.35-11
Fig.35-12
2
A
1x10
2
4
6
2
1x103
1x104
1x105
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
A
4 6 4 6
300A350A
400A
250A 200A
150A
c
p
Unlimited peak values:DC component 50%DC component 0%
Le
t-throug
hcurren
t
Prospective short-circuit current
ADA94-5098b
70 60
18
14
12
81
10
6
70
108
140
71.5
11.5
ADA94-5133a-x
Dimensions in mm
18
706
0
12
18
14
12
14
81
10
6
70
108
140
71.5
11
.5
11.5
ADA94-5
133a-v
Dimensions in mm
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3.1.2 3NE8 7..-1 (IEC 60 269-4-1, Size 000/80) UOrder No. 3NE8 714-1 3NE8 715-1 3NE8 701-1 3NE8 702-1 3NE8 717-1 3NE8 718-1
Utilization category
(IEC 60 269)
gR gR gR gR gR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts
(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body)
Power dissipation at InCyclic load factor WLWeight, approx.
V
A
A2s
A2s
K
W
kg
690
20
12
83
40
7
0.9
0.13
690
25
19
140
40
9
0.9
0.13
690
32
40
285
45
10
0.9
0.13
690
40
69
490
55
12
0.9
0.13
690
50
115
815
60
15
0.9
0.13
690
63
215
1550
70
16
0.95
0.13
Table36-15
Fig.
36-13
Time/current characteristics
2 4 61x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x104
2 4 6 2 4 61 1 1 18 8 8
20A
40A
50A32A
63A25A
vs
p
Virtua
lpre-arc
ing
time
Prospective short-circuit current
A3NE87
Fig.36-14
Correction factor kA for clearing I2t value
Fig.36-15
Arc voltage
0 100 200 300 400 500 600
V
1
0.2
0.4
0.6
0.8
700 800
A
w
Correc
tion
facto
r
ADA94-5003a-v
Recovery voltage
200 400 500 600
V
700 800100
s
w
300
1400
1200
1000
800
600
400
200
0
V
Pea
karcvo
ltage
ADA94-5004a-v
Recovery voltage
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Fig.37-16
Let-through characteristics (current limiting at 50 Hz)
Fig.37-17
2
A
1x10
2
4
6
c
2
1x103
1x104
1x105
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
p
A
4 6 4 6
40A50A
63A
32A 25A
20A
Prospective short-circuit current
Let-
throug
hcurren
t
Unlimited peak values:DC component 50%DC component 0%
ADA94-5005b
40
779
853
36
39
2
20.8
19.7
8.5
8.5
ADA94-5044a
Dimensions in mm
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3.1.3 3NE8 7..-1 (IEC 60 269-4-1, Size 000/80) UOrder No. 3NE8 720-1 3NE8 721-1 3NE8 722-1 3NE8 724-1 3NE8 725-1 3NE8 727-1 3NE8 731-1
Utilization category
(IEC 60 269)
aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts
(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body)
Power dissipation at InCyclic load factor WLWeight, approx.
V
A
A2s
A2s
K
W
kg
690
80
380
2700
80
18
0.9
0.13
690
100
695
4950
75
19
0.95
0.13
690
125
1250
9100
80
23
0.95
0.13
690
160
2350
17000
100
31
0.9
0.13
690
200
4200
30000
120
36
0.9
0.13
690
250
7750
55000
125
42
0.9
0.13
690
315
12 000
85 500
150
54
0.85
0.13
Table38-16
Fig.
38-18
Time/current characteristics
2 4 61x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x104
2 4 6 2 4 61 1 1 18 8 8
100A
200A
250A160A
315A80A 125A
vs
p
Virtua
lpre-arc
ing
time
Prospective short-circuit current 1
A3NE8-2
Fig.38-19
Correction factor kA for clearing I2t value
Fig.38-20
Arc voltage
0 100 200 300 400 500 600
V
1
700 800
A
w
Correc
tion
facto
r
ADA94-5003b
Recovery voltage
0.2
0.4
0.6
0.8
200 400 500 600
V
700 800100
s
w
300
1400
1200
1000
800
600
400
200
0
V
Peakarcvoltage
ADA94-5004b
Recovery voltage
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Fig.39-21
Let-through characteristics (current limiting at 50 Hz)
Fig.39-22
2
A
1x10
2
4
6
c
2
1x103
1x104
1x105
2
4
6
2
4
6
2
x102 x103 x104 x105
2 2 4 61 1 1 18 8 8
p
A
4 6 4 6
80A
100A125A
160A200A
250A315A
1Prospective short-circuit current
Let-
throug
hcurren
t Unlimited peak values:DC component 50%DC component 0%
ADA94-5005-v
40
779
853
36
39
2
20.8
19.7
8.5
8.5
ADA94-5044a
Dimensions in mm
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3.1.4 3NC8 4.. (IEC 60 269-2-1, Size 3), 3NC8 4..-3 (IEC 60 269-4-1, Size 3/110) 1)
Order No. 3NC8 4233NC8 423-3
3NC8 4253NC8 425-3
3NC8 4273NC8 427-3
3NC8 4313NC8 431-3
3NC8 4343NC8 434-3 3NC8 444-3
Utilization category
(IEC 60 269)
gR gR gR gR gR aR
Rated voltage VnRated current In
Pre-arcing I2
t value I2
ts(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body)
Power dissipation at InCyclic load factor WLWeight, approx.
V
A
A2
s
A2s
K
W
kg
660
150 2)
1100
17600
33
40
0.85
0.95
660
200 2)
2400
38400
46
55
0.85
0.95
660
250
4400
70400
95
72
0.85
0.95
660
350 2)
11000
176000
65
95
0.85
0.95
660
500 2)
28000
448000
75
130
0.85
0.95
600
1000
400000
2480000
110
140
0.9
0.95
Accessories3)
Fuse base, 1-pole
Fuse puller
Fused switch disconnector
Switch disconnector with fuses
3NH3 430
3NX1 011
3NP54
3KL61 30-1AB0
3NX1 011
Table40-17
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-1
2) Cooling air velocity 1 m/s. For natural air cooling, reduced by 10 %3) Maximum current and minimum required connection cross-section when using fuse bases and
switch disconnectors, refer to Section 2.3
Fig.40-23
Time/current characteristics
2 4 6
A
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x101
1x102
1x10
1x104
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x105
2 4 6 2 4 61 1 1 18 8 8
s
150A 250A 500A
350A 1000A
vs
p
200A
Virtua
lpre-arc
ing
time
Prospective short-circuit current
ADA94-5
099b
Fig.40-24
Correction factor kA for clearing I2t value
Fig.40-25
Arc voltage
0 100 200 300 400 500 600
V
700 800
w
1000A
150A - 500A
A
Correc
tion
fac
tor
0.6
0.8
1
0.4
0.2
ADA94-50
08c
Recovery voltage
0 200 400 600
V
800 1000 1200
400
800
1200
1600
2000
s
V
w
1400
1000
600
200
0
1800
1000A
150A - 500A
Recovery voltage
Pea
karcv
oltage
ADA94-5100b
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3NC8 4..
3NC8 4..-3
Fig.41-26
Let-through characteristics (current limiting at 50 Hz)
Fig.41-27
Fig.41-28
2
A
1x10
2
4
6
2
1x103
1x104
1x105
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
A
4 6 4 6
500A
250A 200A
150A
350A
1000A
c
p
Unlimited peak values:DC component 50%DC component 0%
L
et-throug
hcurren
t1
Prospective short-circuit current
ADA94-5101c
70 60
18
14
12
81
10
6
70
108
140
71.5
11.5
ADA94-5133a-x
Dimensions in mm
18
70 60
12
18
14
12
14
81
10
6
70
108
140
71.5
11.5
11.5
ADA94-5133a-v
Dimensions in mm
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3.1.5 3NE1 8..-0 (IEC 60 269-2-1, Size 000) UOrder No. 3NE1813-0 3NE1814-0 3NE1815-0 3NE1803-0 3NE1802-0 3NE1817-0 3NE1818-0 3NE1820-0
Utilization category
(IEC 60 269)
gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS
Rated voltage VnRated current InPre-arcing I2t value I2ts
(tvs = 1 ms)Clearing I2t value I2tA at Vn
Temperature rise at In
(center of the fuse body) 1)
Power dissipation at In1)
Cyclic load factor WL
Weight, approx.
V
A
A2s
A2s
K
W
kg
690
16
18
200
25
3.0
1.0
0.13
690
20
41
430
25
3.5
1.0
0.13
690
25
74
780
30
4.0
1.0
0.13
690
35
166
1700
35
5.0
1.0
0.13
690
40
295
3000
30
5.0
1.0
0.13
690
50
461
4400
35
6.0
1.0
0.13
690
63
903
9000
40
7.0
1.0
0.13
690
80
1843
18000
40
8.0
1.0
0.13
Accessories 2)
Fuse base, 1-pole
Fuse base, 3-pole
Fuse puller
Fused switch disconnector
3NH3 030
3NH4 030
3NX1 011
3NP40/3NP50
Switch disconnector with
fuses
3KL50 30-1.B00
3KM50 30-1.B00
3KL5230-1.B00
3KM5230-1.B00
Table42-18
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base
2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section2.3
Fig.42-29
Time/current characteristics
s
Ap
vs
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
6
4
2
1x10-3
16A 25A 40A 63A20A 35A 50A 80A
1x10 1
2 4 6 8 1x10 2
2 4 6 8 1x10 3
2 4 6 8 1x10 4
Prospective short-circuit current
Virtua
lpre-arc
ing
time
ADA94-5087
c
Fig.42-30
Correction factor kA for clearing I2t value
Fig.42-31
Arc voltage
0 100 200 300 400 500 600
V
1
700 800
3NE 18...-0
A
w
Correc
tion
fac
tor 0.8
0.6
0.4
0.2
ADA94-508
5b
Recovery voltage
200 400 500 600
V
700 800100 300
1400
1200
1000
800
600
400
200
0
V
s
w
Pea
karcv
oltage
ADA94-5
086d
Recovery voltage
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43
Fig.43-32
Let-through characteristics (current limiting at 50 Hz)
Fig.43-33
2
A
1x10
2
46
1
1x102
x101 x102 x105
61 1 18 8
A
4 6 2x10 3184 6 2
x10 4184 6 2 4
2
4
6
1x103
2
4
6
1x104
2
4
6
1x105
80A
50A
35A
20A
63A
40A
25A
16A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Le
t-th
roug
hcurren
t
ADA94-5090c
15
21
6
20
10
40.5
79.9
53.8
50.3
2.3
35.8
53.3
ADA94-5144a
Dimensions in mm
7/27/2019 Catlogo-Sitor Combinado
46/128
44
3.1.6 3NE1 0..-0 (IEC 60 269-2-1, Size 00), 3NE1 2..-0 (IEC 60 269-2-1, Size 1) UOrder No. 3NE1 021-0 3NE1 022-0 3NE1 224-0 3NE1 225-0 3NE1 227-0 3NE1 230-0
Utilization category
(IEC 60 269)
gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS
Rated voltage VnRated current InPre-arcing I2t value I2ts
(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body) 1)
Power dissipation at In1)
Cyclic load factor WLWeight, approx.
V
A
A2s
A2s
K
W
kg
690
100
3100
33000
36
10
1.0
0.20
690
125
6000
63000
40
11
1.0
0.20
690
160
7400
60000
60
24
1.0
0.55
690
200
14500
100000
65
27
1.0
0.55
690
250
29500
200000
75
30
1.0
0.55
690
315
46100
310000
80
38
1.0
0.55
Accessories2)
Fuse base, 1-pole
Fuse base, 3-pole
3NH3 030
3NH4 030
3NH3 230
3NH4 230
3NH3 330
Fuse puller 3NX1 011
Fused switch disconnector
Switch disconnector with
fuses
3NP40
3NP50
3KL52 30-1.B00
3KM52 30-1.B00
3NP42
3NP52
3KL55 30-1.B00
3KM55 30-1.B00
3NP53
3KL57 30-1.B00
3KM57 30-1.B00
Table44-19
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base
2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.44-34
Time/current characteristics
2
46
2
46
2
46
2
46
2
46
s
A
vs
p
2
461x104
1x103
2
46
1x102
1x101
1x100
1x10-1
1x10-2
1x10-3
1x10 2
642 8 1x10 3
642 8 1x10 4
64 82 1x10 5
100A 160A 250A
125A 200A 315A
Virtua
lpre-arc
ing
time
Prospective short-circuit current 1
ADA94-5127b
Fig.44-35
Correction factor kA for clearing I2t value
Fig.44-36
Arc voltage
0 100 200 300 400 500 600
V
1
700 800
3NE 10...-0
A
w
3NE 12...-0
Correc
tion
fac
tor
0.2
0.4
0.6
0.8
ADA94-5128b
Recovery voltage
200 400 500 600
V
700 800100 300
1400
1200
1000
800
600
400
200
0
V
s
w
Pea
karcvo
ltage
ADA94-5
086d
Recovery voltage
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45
3NE1 0..-0 3NE1 2..-0
Fig.45-37
Let-through characteristics (current limiting at 50 Hz)
Fig.45-38
Fig.45-39
2
A
1x10
2
46
1
1x102
x101 x10 2 x105
61 1 18 8
A
4 6 2x10 3184 6 2
x10 4184 6 2 4
2
4
6
1x103
2
4
6
1x104
2
4
6
1x105
315A250A
200A160A
125A100A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Let-
throug
hcurren
t
ADA94-5089c
10
6
30
15
60
48
53
79
35.8
49.4
2.2
ADA94-5136b
Dimensions in mm
10
6
52
25 5
2
3
73
135
40.5
63.5
66.5
ADA94-5145a
Dimensions in mm
7/27/2019 Catlogo-Sitor Combinado
48/128
46
3.1.7 3NE1 3..-0 (IEC 60 269-2-1, Size 2), 3NE1 4..-0 (IEC 60 269-2-1, Size 3) UOrder No. 3NE1
331-03NE1332-0
3NE1333-0
3NE1334-0
3NE1435-0
3NE1436-0
3NE1437-0
3NE1438-0
Utilization category
(IEC 60 269)
gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS
Rated voltage VnRated current In
Pre-arcing I2
t value I2
ts(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body) 1)
Power dissipation at In1)
Cyclic load factor WLWeight. approx.
V
A
A2
s
A2s
K
W
kg
690
350
58000
430000
75
42
1.0
0.7
690
400
84000
590000
85
45
1.0
0.7
690
450
104000
750000
85
53
1.0
0.7
690
500
149000
950000
90
56
1.0
0.7
690
560
215000
1700000
65
50
1.0
0.95
690
630
293000
2350000
70
55
1.0
0.95
690
710
437000
3400000
68
60
1.0
0.95
690
800
723000
5000000
70
59
1.0
0.95
Accessories2)
Fuse base, 1-pole 3NH3 330 3NH3 430
Fuse puller 3NX1 011
Fused switch disconnector
Switch disconnector with fuses
3NP53
3KL57 30-1.B00
3KM57 30-1.B00
3NP54
3KL61 30-1AB0
3NP54
3KL62
Table46-20
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.46-40
Time/current characteristics
s
A
vs
p
1x104
64
2
1x10 3
64
2
1x10 2
64
2
1x10 1
64
2
1x10 0
64
2
1x10 -1
64
2
1x10 -2
64
2
1x10 -3
1x102
2 4 6 8 1x103
2 4 6 8 1x104
2 4 6 8 1x105
800A710A630A560A
500A450A400A350A
Virtualpre-arcingtime
Prospective short-circuit current
ADA94-5088d
Fig.46-41
Correction factor kA for clearing I2t value
Fig.46-42
Arc voltage
0 100 200 300 400 500 600
V
1
700 800
3NE1 3..-03NE1 4..-0
w
A
Correc
tion
fac
tor 0.8
0.6
0.4
0.2
ADA94-5126
c
Recovery voltage
200 400 500 600
V
700 800100 300
1400
1200
1000
800
600
400
200
0
V
s
w
Pea
karc
vo
ltage
ADA94-5
086d
Recovery voltage
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47
3NE1 3..-0 3NE1 4..-0
Fig.47-43
Let-through characteristics (current limiting at 50 Hz)
Fig.47-44
Fig.47-45
2
A
1x10
2
4
6
1
1x102
x101 x10 2 x10561 1 18 8
A
4 6 2x10 3184 6 2
x10 4184 6 2 4
2
4
6
1x103
2
4
6
1x104
2
4
6
1x105
630A560A
500A450A
400A350A
p
c
800A710A
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current 1
Let-
throug
hcurren
t1
ADA94-5129d
10
6
60
25 7
2
3
73
149
604
7.5
66.5
ADA94-5146b
Dimensions in mm
10
6
70
68
70
151
32
73
60.4
82.1
2.5
ADA94-5
147
Dimensions in mm
7/27/2019 Catlogo-Sitor Combinado
50/128
48
3.1.8 3NE1 4..-1 (IEC 60 269-2-1, Size 3) UOrder No. 3NE1 437-1 3NE1 438-1
Utilization category
(IEC 60 269)
gR gR
Rated voltage VnRated current InPre-arcing I2t value I2ts
(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body) 1)
Power dissipation at In1)
Cyclic load factor WLWeight, approx.
V
A
A2s
A2s
K
W
kg
600
710
321000
2460000
85
65
1.0
0.95
600
800
437000
3350000
95
72
1.0
0.95
Accessories2)
Fuse base, 1-pole 3NH3 430
Fuse puller 3NX1 011
Fused switch disconnector
Switch disconnector with fuses
3NP54
3KL62 30
Table
48-21
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base
2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.48-46
Time/current characteristics
s
A
vs
p
1x104
64
2
1x10 3
64
2
1x10 2
64
2
1x10 1
64
2
1x10 0
64
2
1x10 -1
64
2
1x10 -2
64
2
1x10 -3
1x102
2 4 6 8 1x103
2 4 6 8 1x104
2 4 6 8 1x105
800A710A
Virtualpre-arcingtime
Prospective short-circuit current
ADA
94-5088c-v
Fig.48-47
Correction factor kA for clearing I2t value
Fig.48-48
Arc voltage
0 100 200 300 400 500 600
V
1
700 800
w
A
Correc
tion
fac
tor 0.8
0.6
0.4
0.2
AD
A94-5126-v
Recovery voltage
200 400 500 600
V
700 800100 300
1400
1200
1000
800
600
400
200
0
V
s
w
Peak
arcvo
ltage
ADA94-5
086-v
Recovery voltage
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49
Fig.49-49
Let-through characteristics (current limiting at 50 Hz)
Fig.
49-50
2
A
1x10
2
4
6
1
1x102
x101 x10 2 x10561 1 18 8
A
4 6 2x10 3184 6 2
x10 4184 6 2 4
2
4
6
1x103
2
4
6
1x10
4
2
4
6
1x105
p
c
800A710A
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current 1
Le
t-throug
hcurren
t1
ADA94-5129c-v
10
6
70
68
70
151
32
73
60
.4
82
.1
2.5
ADA94-5147
Dimensions in mm
7/27/2019 Catlogo-Sitor Combinado
52/128
50
3.1.9 3NE1 0..-2 (Size 00), 3NE1 2..-2 (Size 1), 3NE1 3..-2 (Size 2), IEC 60 269-2-1 UOrder No. 3NE1
022-23NE1224-2
3NE1225-2
3NE1227-2
3NE1230-2
3NE1331-2
3NE1333-2
3NE1334-2
Utilization category
(IEC 60 269)
gR gR gR gR gR gR gR gR
Rated voltage VnRated current In
Pre-arcing I2
t value I2
ts(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body) 1)
Power dissipation at In1)
Cyclic load factor WLWeight, approx.
V
A
A2
s
A2s
K
W
kg
690
125
3115
23000
55
13.5
1.0
0.2
690
160
2650
15840
70
30
1.0
0.55
690
200
5645
44000
62
28
1.0
0.55
690
250
11520
68800
70
35
1.0
0.55
690
315
22580
135500
75
42
1.0
0.55
690
350
29500
177000
82
44
1.0
0.7
690
450
46100
276000
100
62
1.0
0.7
690
500
66400
398000
100
65
1.0
0.7
Accessories2)
Fuse base, 1-pole 3NH3 030 3NH3 230 3NH3 330 3NH3 340
Fuse puller 3NX1 011
Fused switch disconnector
Switch disconnector with fuses
3NP50
3KL52
3NP52
3KL55
3NP53
3KL57
3NP54
3KL61
Table50-22
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base
2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.50-51
Time/current characteristics
2 4 6x10
2x10
3x10
4x10
52 4 6 2 4 61 1 1 18 8 8
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10 -1
64
2
1x10 -2
64
2
1x10 -3
s
vs
A
125A160A
250A200A
350A315A
450A500A
3NE10-21
p
A
Virtua
lpre-arc
ing
time
Prospective short-circuit current
Fig.50-52
Correction factor kA for clearing I2t value
Fig.50-53
Arc voltage
0 100 200 300 400 500 600
V
700 800
A
w
1
125A
160A
3NE
10-22
Correc
tion
fac
tor
A
0.8
0.6
0.4
0.2
Recovery voltage
0 200V
V
w
s
2000
1800
1000
800
400
200
400 600 800
3NE10-23
0
160-315A
350A
125A
600
1200
1400
1600
1000 1200
A
Pea
karcvo
ltage
Recovery voltage
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51
3NE1 0..-2 3NE1 2..-2
3NE1 3..-2
Fig.51-54
Let-through characteristics (current limiting at 50 Hz)
Fig.51-55
Fig.51-56
Fig.51-57
21x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
x102 x103 x10 4 x105
2 2 4 61 1 1 18 8 84 6 4 6
p
c
A
3NE10-24
A
A
Prospective short-circuit current
Le
t-throug
hcurren
t
Unlimited peak values:DC component 50%DC component 0%
10
6
30
15
60
48
53
79
35.8
49.4
2.2
ADA94-5136b
Dimensions in mm
10
6
52
25 5
2
3
73
135
40.5
63.5
66.5
ADA94-5145a
Dimensions in mm
10
6
60
25 7
2
3
73
149
604
7.5
66.5
ADA94-5146b
Dimensions in mm
7/27/2019 Catlogo-Sitor Combinado
54/128
52
3.1.10 3NE1 4..-2 (IEC 60 269-2-1, Size 3) UOrder No. 3NE1 435-2 3NE1 436-2 3NE1 447-2 3NE1 437-2 3NE1 438-2 3NE1 448-2
Utilization category
(IEC 60 269)
gR gR gR gR gR gR
Rated voltage VnRated current InPre-arcing I2t value I2ts
(tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In(center of the fuse body) 1)
Power dissipation at In1)
Cyclic load factor WLWeight, approx.
V
A
A2s
A2s
K
W
kg
690
560
130000
845000
80
60
1.0
1.0
690
630
203000
1320000
82
62
1.0
1.0
690
670
240000
1557000
90
65
1.0
1.0
690
710
265000
1725000
90
72
1.0
1.0
690
800
361000
2348000
95
82
1.0
1.0
690
850
520000
3381000
95
76
1.0
1.0
Accessories2)
Fuse base, 1-pole 3NH3 340
Fuse puller 3NX1 011
Fused switch disconnector
Switch disconnector with fuses
3NP54
3KL61
3NP54
3KL62
Table
52-23
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base
2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.52-58
Time/current characteristics
2 4 6x10
2x10 3 x10
4x10
52 4 6 2 4 61 1 1 18 8 8
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10 -1
64
2
1x10 -2
64
2
1x10 -3
s
vs
A
560A630A
850A800A710A670A
3N
E14-21
p
A
Virtua
lpre-arc
ing
time
Prospective short-circuit current
Fig.52-59
Correction factor kA for clearing I2t value
Fig.52-60
Arc voltage
0 100 200 300 400 500 600
V
700 800
A
w
1
3NE14-22
Correc
tion
fac
tor
A
0.8
0.6
0.4
0.2
Recovery voltage
0 200V
V
w
s
2000
1800
1000800
400
200
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