Selection and ordering data

The following table lists recommendations for additional line-side components, such as fuses and circuit breakers.

Note for use in compliance with IEC standards:

Type 3NA3 fuses and type 3RV circuit breakers are recommended for European countries. The values in the table take into account the overload capability of the inverter.

Notes for use in compliance with UL regulations:

Fuses for use in North America must be UL-certified, class J, T, CC, G or CF fuses with a rated voltage of 600 V AC.

Short Circuit Current Rating (SCCR)
according to UL

Applies to industrial control panel installations to NEC Article 409 or UL 508A.

• SINAMICS G120C: 100 kA (the value depends on the fuses and circuit breakers used)

Notes regarding installations in Canada:

Overvoltage protection devices in accordance with overvoltage category III and with the following ratings must be connected on the line side of the inverter:

• Rated voltage 480 V (phase-phase) and 480 V (phase-ground)
• Voltage limit 4 kV (phase-phase) and 6 kV (phase-ground)

All overvoltage protection devices used must comply with Canadian standards for industrial installations.

Further information, particularly regarding use in accordance with UL guidelines, is available at
https://support.industry.siemens.com/cs/document/109478990

Additional information about the listed fuses and circuit breakers can be found in Catalogs LV 10, IC 10 and IC 10 AO.