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This Siemens 3VA5112-4EC31-1AA0 is a molded-case circuit breaker from the 3VA5 series, designed for system protection. It is a 3-pole unit with a rated current of 125A and a maximum voltage rating of 690V.
The circuit breaker offers a breaking capacity of 25kA at 480V and 14kA at 600Y/347V. It is equipped with TM230 overload protection and fixed short-circuit protection with an adjustable range of 5 to 10 times the rated current.
Designed for DIN rail mounting, this breaker has a mechanical service life of typically 15,000 switching cycles. It operates within an ambient temperature range of -25°C to 70°C and has a protection class of IP40 on the front.
Key technical data includes a maximum power loss of 29.1W and an active power loss per pole of 9.7W at AC in hot operating state. The breaker also supports optional motor drive accessories.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated current (In) is 125A, and the permanent assigned current (Iu) is also 125A.
The voltage rating is 690V.
The breaking capacity at 480V is 25 kA.
It is designed for DIN rail mounting.
The minimum operating ambient temperature is -25°C.