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The Siemens 3VA5112-5ED31-0AA0 is a 3-pole molded-case circuit breaker from the SENTRON line, designed for system protection applications. This breaker operates with a maximum rated operational voltage of 690V AC and 500V DC, and has an insulation voltage of 800V.
Key electrical specifications include a permanent rated current of 125A, with operational current ratings varying slightly with temperature, from 125A at 40°C down to 111A at 70°C. The breaker offers adjustable overload protection (Ir) at a minimum of 125A and adjustable short-circuit protection (Ii) from 1250A to 1250A. It boasts a high breaking capacity, with an Icu of 55kA at 415V and 35kA at 480V according to UL 489 standards.
Mechanically, the unit has a typical service life of 15,000 switching cycles. Its dimensions are 5.5 inches in height and 3 inches in width and depth. The mounting type is DIN Rail, and it features a lever actuator.
This circuit breaker is compliant with UL 489 standards and carries approvals from CCC, CE, CSA, VDE, and EAC. It is designed with a TM210 overcurrent release and LI protection function, suitable for HACR Type applications.
| 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 for this circuit breaker is 690 V with AC 50/60Hz and 500 V with DC.
The permanent rated current is 125 A, and the operational current at 40°C is also 125 A.
The breaking capacity (Icu) is 55 kA at 415 V and 35 kA at 480 V according to UL 489.
This circuit breaker is designed for DIN Rail mounting.
Approval agencies include CCC, CE, CSA, UL489, and VDE.