The Siemens 3VA2450-5MQ32-0DH0 is a 3-pole IEC frame 630 circuit breaker with a breaking capacity class M, rated Icu=55kA @ 415V. It carries the ETU860M electronic trip unit configured for motor protection with LSIG (long-time, short-time, instantaneous, ground-fault) protection. The rated current In=500A, with overload protection Ir adjustable from 200A to 500A, short-circuit protection Isd from 1.2 to 15 times In, and instantaneous protection Ii from 3 to 15 times In. Ground-fault protection Ig is adjustable from 0.2 to 1 times In with a time delay tg of 0.05 to 0.8 seconds. An undervoltage release rated 208-230 V AC 50/60 Hz is included as an accessory.
Siemens 3VA2450-5MQ32-0DH0 Circuit Breaker, 55kA @ 415V, 500
MPN3VA2450-5MQ32-0DH0
Siemens 3VA2 series, IEC frame 630, breaking capacity class M, Icu=55kA @ 415V, 3-pole, motor protection ETU860M, LSIG, In=500A, overload protection Ir=200A...500A, short-circuit protection Isd=1.2..15x In, Ii=3..15x In, ground-fault protection Ig=0.2...1 x In, tg=0.05-0.8s, undervoltage release 208-230 V AC 50/60 Hz accessory.
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MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026
Product details
Frequently asked questions
What is the breaking capacity of 3VA2450-5MQ32-0DH0?
The breaking capacity class M gives Icu=55kA @ 415V, which means it can safely interrupt fault currents up to 55kA at that voltage without upstream cascading.
What protection functions does the ETU860M trip unit provide?
The ETU860M provides LSIG protection: long-time (overload) with Ir adjustable 200A-500A, short-time with Isd adjustable 1.2-15x In, instantaneous with Ii adjustable 3-15x In, and ground-fault with Ig adjustable 0.2-1x In and time delay tg 0.05-0.8s.
Where can I buy 3VA2450-5MQ32-0DH0?
This part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — we confirm both at quote time.
MPN
3VA2450-5MQ32-0DH0