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This Siemens SENTRON 3VA5 series molded-case circuit breaker, part number 3VA5212-5ED31-0AA0, is designed for system protection. It features a 3-pole configuration and a rated operational current of 125A, with a maximum frame size current of 250A.
The circuit breaker operates at a maximum rated operational voltage of 690V AC and 750V DC, with an insulation voltage of 800V. It provides overload protection with Ir=125A and fixed short-circuit protection with Ii=10 x In. The breaking capacity according to UL 489 is 35kA at 480V, and according to IEC 60947, it is 55kA at 415V.
With a mechanical service life of typically 20,000 switching cycles, this breaker is built for durability. It is designed for DIN rail mounting and features a lever actuator. The dimensions are 185mm in height, 105mm in width, and 83mm in depth.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum rated operational voltage is 690 V.
The current rating is 125A.
The breaking capacity at 690V is 7 kA.
It uses DIN rail mounting.
It is rated for 20,000 switching cycles.