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SIVACON S8 Planning Principles – Cubicles in fixed-mounted design
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11
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Tab. 6/10: Rating data of the cable feeders for fuse-switch-
disconnectors and switch-disconnectors with fuses
Rating data of the cable feeders
Tab. 6/10 and Tab. 6/11 states the installation data of the
switching devices if used in fixed-mounted cubicles with a
front door. The thermal interaction of the outgoing feeders
in the cubicle has to be and is considered by specifying the
rated diversity factor (RDF):
Permissible continuous operational current (cable feeder) =
= rated current I
nc
x RDF
Type
Nominal
device current
Number
per row
Module height
Rated current I
nc
at 35 °C ambient temperature
3-pole / 4-pole 3-pole 4-pole Non-ventilated Ventilated
Fuse switch-disconnectors
1)
3NP1123 160 A
1 150 mm - 106 A 120 A
3NP1123 160 A
4 300 mm - 106 A 120 A
3NP1133 160 A
1 200 mm - 123 A 133 A
3NP1133 160 A
3 300 mm - 123 A 133 A
3NP1143 250 A
1 250 mm - 222 A 241 A
3NP1153 400 A
1 300 mm - 350 A 375 A
3NP1163 630 A
1 300 mm - 480 A 530 A
3NP4010 160 A
1 150 mm - 84 A 96 A
3NP4010 160 A
4 300 mm - 84 A 96 A
3NP4070 160 A
1 200 mm - 130 A 142 A
3NP4070 160 A
3 300 mm - 130 A 142 A
3NP4270 250 A
1 250 mm - 248 A 250 A
3NP4370 400 A
1 300 mm - 355 A 370 A
3NP4470 630 A
1 300 mm - 480 A 515 A
3NP5060 160 A
1 200 mm - 84 A 96 A
3NP5060 160 A
3 350 mm - 84 A 96 A
3NP5260 250 A
1 250 mm - 248 A 250 A
3NP5360 400 A
1 300 mm - 355 A 370 A
3NP5460 630 A
1 300 mm - 480 A 515 A
Switch-disconnectors with fuses
1)
3KL50 63 A
1 250 mm 250 mm 61 A 63 A
3KL52 125 A
1 250 mm 250 mm 120 A 125 A
3KL53 160 A
1 250 mm 250 mm 136 A 143 A
3KL55 250 A
1 350 mm 350 mm 250 A 250 A
3KL57 400 A
1 350 mm 350 mm 345 A 355 A
3KL61 630 A
1 550 mm 550 mm 535 A 555 A
1)
Rated current with fuse link = nominal device current
For the outgoing feeders in the cubicle, the rated diversity
factor RDF = 0.8 can be applied:
• regardless of the number of feeders in the cubicle
• regardless of the mounting position in the cubicle
For cubicles with a very high packing and/or power density,
a project-specific assessment is recommended. More
detailed information is available via your Siemens contact.