Overcurrent Protection By Means Of Line Fuses And Circuit Breakers - Siemens SINAMICS S120 Manual

3.3

Overcurrent protection by means of line fuses and circuit breakers

Line fuses or circuit breakers must be used for cable protection/overcurrent protection. The
following types can be used:
Table 3- 1 Line fuses and circuit breakers for Active Line Modules
16 kW
I fuse 35 A
n
LV HRC line fuse 3NA3 814
Circuit breaker 3RV1031-4FA10
(IEC 60947)
UL-application
Rated current 35 A
Line fuse AJT35
2)
Circuit breaker 3VL1135-2KM30
For applications according to IEC, equivalent fuses and circuit breakers are permissible.
1)
Type AJT Class J, source: Mersen company (previously Ferraz Shawmut)
2)
Table 3- 2 Line fuses and circuit breakers for Basic Line Modules
I fuse
n
LV HRC line fuse
Circuit breaker
(IEC 60947)
UL-application
Rated current
Line fuse
2)
Circuit breaker
For applications according to IEC, equivalent fuses and circuit breakers are permissible.
1)
Type AJT Class J, source: Mersen company (previously Ferraz Shawmut)
2)
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
3.3 Overcurrent protection by means of line fuses and circuit breakers
36 kW
80 A
3NA3 824
3RV1041-4LA10
80 A
AJT80
3VL2108-2KN30
20 kW
63 A
3NA3 822
3RV1041-4JA10
60 A
AJT60
3VL2106-2KN30
Line connection and line-side power components
1)
55 kW 80 kW
125 A 160 A
3NA3 132 3NA3 136
3VL2712-1DC33 3VL3720-1DC33
125 A 175 A
AJT125 AJT175
3VL2112-2KN30 3VL3117-2KN30
1)
40 kW
100 A
3NA3 830
3VL2710-1DC33
100 A
AJT100
3VL2110-2KN30
120 kW
250 A
3NA3 144
3VL3725-1DC36
250 A
AJT250
3VL3125-2KN30
100 kW
250 A
3NA3 144
3VL3725-1DC36
250 A
AJT250
3VL3125-2KN30
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