The Siemens 3VA1112-6MH36-0DC0 is a 3-pole IEC frame 160 circuit breaker from the 3VA1 series, rated at 125 A with a breaking capacity class H — Icu = 70 kA at 415 V. The breaker is configured for starter protection with a TM120M thermal-magnetic trip unit — the TM120M gives you an adjustable magnetic trip range of 5 to 15 times In (so 625 A to 1875 A at 125 A In), letting you dial in short-circuit protection to match the inrush of a motor starter without nuisance tripping. Note that this variant ships without overload protection (the TM120M covers short-circuit only here; overload coordination is handled externally by the starter overload relay).
Siemens 3VA1112-6MH36-0DC0 Circuit Breaker, 125A, 70kA @ 415
MPN3VA1112-6MH36-0DC0
Siemens 3VA1 IEC frame 160, breaking capacity class H, 3-pole circuit breaker, 125 A, Icu = 70 kA @ 415 V, starter protection TM120M, undervoltage release 208-230 V AC, 2 auxiliary switches HQ, clamp connection.
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Product details
Frequently asked questions
What does the breaking capacity class H mean on this breaker?
Class H means the breaker has a high interrupting capacity — Icu = 70 kA at 415 V — which is suitable for high-fault-current installations like main distribution boards or large motor control centers.
Does this breaker include overload protection?
No, this variant (TM120M, AM) provides short-circuit protection only, with an adjustable magnetic trip of 5 to 15 times In. Overload protection must be provided externally by the motor starter overload relay.
MPN
3VA1112-6MH36-0DC0