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Siemens 3VA1225-5FF42-0AF0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-5FF42-0AF0 Circuit Breaker, 55kA @ 415V, 250

MPN3VA1225-5FF42-0AF0

Siemens 3VA1 IEC frame 250, breaking capacity class M, Icu=55kA @ 415V, 4-pole, line protection TM240, ATAM, In=250A, overload protection Ir=175A...250A, short-circuit protection Ii=5...10 x In, N conductor protection 50%, nut keeper kit, 1 auxiliary switch HQ, 1 trip alarm switch HQ.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Product details

The Siemens 3VA1225-5FF42-0AF0 is a 4-pole IEC molded-case circuit breaker on the 250 A frame, rated Icu = 55 kA at 415 V AC — breaking capacity class M. The thermal-magnetic trip unit (TM240) gives you adjustable overload protection from 175 A to 250 A (Ir) and a short-circuit pickup (Ii) that's fixed at 5 to 10 times the rated current In = 250 A. That's a wide magnetic adjustment band — you can coordinate downstream breakers without nuisance tripping on motor inrush.

Deployment context

The auxiliary switch (HQ) and trip alarm switch (HQ) give you remote status feedback: one signals the breaker position, the other flags a trip event.

Frequently asked questions

Where can I buy 3VA1225-5FF42-0AF0 and get a price?

This part is sourced and quoted to order through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time.

What is the breaking capacity of this breaker?

Icu = 55 kA at 415 V AC, breaking capacity class M — suitable for high-fault-current main or feeder applications.

What are the adjustable protection settings?

Overload protection Ir is adjustable from 175 A to 250 A; short-circuit protection Ii is fixed at 5 to 10 times In (250 A).

MPN
3VA1225-5FF42-0AF0