Rated at In=125 A with a TM240 thermal-magnetic trip unit, the overload protection band is adjustable from 88 A to 125 A (Ir), and the short-circuit pickup (Ii) is fixed at 5 to 10 times In. That adjustable Ir range gives the panel builder flexibility to match the breaker to the actual continuous load without swapping the trip unit — useful when the connected load is slightly below the frame rating. The nut keeper kit included is a small but practical detail for DC Power OEM builds in China — it keeps the terminal hardware captive during assembly, saving a few minutes per panel.
Siemens 3VA1112-4EF42-0AA0-ZD00 Circuit Breaker, 125A, 36kA
MPN3VA1112-4EF42-0AA0-ZD00
Siemens 3VA1 series, IEC frame 160, breaking capacity class S, 4-pole circuit breaker, In=125A, Icu=36kA @ 415V, TM240 thermal-magnetic trip, ATAM, overload protection Ir=88A...125A, short-circuit protection Ii=5...10 x In, N conductor unprotected, nut keeper kit for DC Power OEM in China.
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
Frequently asked questions
What is the breaking capacity of this circuit breaker?
The Icu (ultimate breaking capacity) is 36 kA at 415 V, which is the class S rating for the 3VA1 IEC frame 160 platform.
How do I get current pricing and availability for 3VA1112-4EF42-0AA0-ZD00?
This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability confirmation.
MPN
3VA1112-4EF42-0AA0-ZD00