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This Siemens 3VA5 molded-case circuit breaker, part number 3VA5112-4EC32-1AA0, is designed for system protection applications. It features a 3-pole configuration and a nominal current rating of 125A at 40°C, with a breaking capacity of 25kA at 480V.
The circuit breaker operates at a rated voltage of 690V AC and utilizes the TM230 overcurrent release with LI protection function. It supports overload protection with Ir=125A and fixed short-circuit protection with Ii=5...10 x In.
With a mechanical service life of 20,000 cycles and electrical endurance ratings of up to 8,000 cycles, this breaker is built for durability. It is HACR Type listed according to UL 489. The unit mounts on a DIN rail and features front connections with nut keeper kits.
Key electrical specifications include a maximum power loss of 30.1W and active power loss of 10.03W per pole at rated current in hot operating state. The dimensions are 140mm in height, 76.2mm in width, and 76.5mm in depth, with a net weight of 0.951 kg.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated operating voltage is 690 V AC.
The operational current rating at 40°C is 125 A.
The breaking capacity at 480V is 25 kA.
This circuit breaker has 3 poles.
It offers LI protection function for overcurrent release.
The typical mechanical service life is 20,000 switching cycles.
The mounting type is DIN Rail.