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The Siemens 3VA5181-1MU31-0AA0 is a 3-pole molded-case circuit breaker belonging to the 3VA series, specifically designed for starter protection applications. It operates with a rated current of 1A and a maximum operational voltage of 690V AC.
This circuit breaker features a high breaking capacity, with a maximum short-circuit current (Icu) of 150 kA at 240V and 70 kA at 415V. The adjustable overcurrent release (Ii) ranges from 3A to 7A.
Designed for DIN rail mounting, the unit has a compact mechanical design with dimensions of 140mm height, 76.2mm width, and 76.5mm depth. It offers a mechanical service life of up to 15,000 switching cycles and electrical endurance ratings that vary with voltage and load conditions.
The operating temperature range is from -25°C to 70°C, with storage temperatures from -40°C to 80°C. It carries multiple certifications including CCC, CE, CSA, EAC, UL489, and VDE.
| 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 the Siemens 3VA5181-1MU31-0AA0 circuit breaker is 690 V AC.
The permanent rated current (Iu) is 1A at temperatures up to 50°C, with a maximum rated operational current of the frame size being 125A.
The breaking capacity (Icu) at 415V is 70 kA, and the operating short-circuit current capacity (Ics) at 415V is also 70 kA.
The operating temperature range is from -25°C to 70°C.
The RoHS status is RoHS3 Compliant.