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Siemens 3VA1112-5MH32-0CC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-5MH32-0CC0 Circuit Breaker, 125A, 55kA @ 415

MPN3VA1112-5MH32-0CC0

Siemens 3VA1 IEC frame 160 MCCB, 3-pole, breaking capacity class M Icu=55kA @ 415V AC, In=125A, starter protection TM120M, AM, without overload protection, short-circuit protection Ii=5...15 x In, undervoltage release 120-127V AC 50/60Hz, 2 auxiliary switches HQ, nut keeper kit.

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 3VA1112-5MH32-0CC0 is a 3-pole IEC frame 160 molded case circuit breaker rated 125 A continuous, with a breaking capacity of 55 kA at 415 V AC — class M on the Siemens scale, meaning it sits above standard distribution duty and handles moderate industrial fault levels without cascading upstream. This is a starter-protection variant (TM120M thermal-magnetic release, AM characteristic) configured for short-circuit protection only — there is no built-in overload protection, so it pairs with a separate overload relay for motor branch circuits. The adjustable instantaneous trip range is 5 to 15 times In. The UVR drops the breaker on loss of control voltage — common for emergency-stop chains or undervoltage protection schemes.

Integration notes for panel builders

The UVR coil draws continuously when energized; verify the control transformer sizing if the breaker shares a 120 V AC control bus with multiple UVRs. They are pre-wired with screw terminals; no additional terminal blocks needed for basic signaling.

Frequently asked questions

What does the 55 kA breaking capacity at 415 V mean for my panel?

The 55 kA Icu at 415 V AC means this breaker can safely interrupt fault currents up to 55,000 A without welding contacts or rupturing the case — sufficient for most industrial secondary distribution panels fed from a transformer rated up to about 2.5 MVA at 415 V.

Does this breaker include overload protection for a motor?

No — the TM120M release is configured for short-circuit protection only (instantaneous trip adjustable 5-15 x In). You must add a separate overload relay (e.g., Siemens 3RU2 or 3RB3) in series for thermal motor protection.

Where can I buy 3VA1112-5MH32-0CC0 and how is it quoted?

This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

MPN
3VA1112-5MH32-0CC0