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Siemens 3VA2612-5HM42-0CF0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2612-5HM42-0CF0 Circuit Breaker, 1250A, 55kA @ 41

MPN3VA2612-5HM42-0CF0

Siemens 3VA2 IEC frame 1250, breaking capacity class M, Icu=55kA @ 415 V, 4-pole, line protection ETU330, LIG, In=1250A, overload Ir=500A...1250A, short-circuit Ii=1.5...10 x In, ground-fault Ig=0.2...1 x In.

Siemens 3VA2612-5HM42-0CF0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

Overload protection is adjustable Ir=500A...1250A, short-circuit protection Ii=1.5...10 x In, and ground-fault protection Ig=0.2...1 x In with a time delay tg=0.1/0.3s. The N conductor protection is adjustable (OFF, up to 100%).

Deployment context

This breaker mounts in a fixed or withdrawable chassis within a 3VA2 switchboard or panel. The 4-pole configuration suits three-phase four-wire systems (TN-S or TN-C-S) where neutral protection and ground-fault detection are required. The ETU330 LIG unit provides LSIG protection — long-time, short-time, instantaneous, and ground-fault — covering cable, busbar, and feeder protection in one device.

Frequently asked questions

Where can I buy 3VA2612-5HM42-0CF0 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ to confirm current pricing and availability.

What is the breaking capacity of this breaker?

The rated ultimate breaking capacity Icu is 55kA at 415 V, placing it in breaking capacity class M for the 3VA2 IEC frame.

What protection functions does the ETU330 LIG trip unit provide?

The ETU330 LIG provides LSIG protection: long-time overload (Ir adjustable 500A...1250A), short-time/short-circuit (Ii adjustable 1.5...10 x In), and ground-fault (Ig adjustable 0.2...1 x In with tg=0.1/0.3s). Neutral protection is adjustable OFF to 100%.

MPN
3VA2612-5HM42-0CF0