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The Siemens SENTRON 3VA5112-1MH32-0AA0 is a molded-case circuit breaker designed for starter protection applications. This 3-pole unit features an operational current of 125A at 40°C, with derated values at higher temperatures.
With a rated insulation voltage of 800V and an operating voltage of 690V AC, this circuit breaker provides robust protection. It boasts a high breaking capacity, with a maximum short-circuit current (Icu) of 150kA at 240V and 70kA at 415V. The mechanical service life is typically 20,000 switching cycles.
The device has a compact mechanical design with dimensions of 140mm height, 76.2mm width, and 76.5mm depth. It is designed for front connection using a nut keeper kit on both ends. The breaker is HACR Type compliant according to UL 489.
This circuit breaker is suitable for various industrial and commercial applications requiring reliable overcurrent protection. Its robust construction and high performance specifications ensure safe and efficient operation.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current is 125A at 40°C, derating to 109A at 70°C.
The rated operating voltage at AC is 690 V.
The maximum short-circuit current breaking capacity (Icu) at 415V is 70 kA, and the operating short-circuit current breaking capacity (Ics) is also 70 kA.
This circuit breaker has 3 poles.
The typical mechanical service life is 20,000 switching cycles.
Yes, it is designed as a load switch according to UL 489 for Heating, Air Conditioning, and Refrigeration (HACR Type) applications.