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This Siemens 3VA5150-1MH31-0AA0 is a molded-case circuit breaker from the 3VA5 series, designed for starter protection applications. It features a 3-pole configuration and a permanent rated current of 50A, maintaining this rating across a wide ambient temperature range from 40°C to 70°C.
The circuit breaker is built to withstand significant electrical stresses, with a maximum breaking capacity (Icu) of 150 kA at 240 V and 70 kA at 415 V. Its short-circuit current making capacity (Icm) is rated at 330 kA at 240 V and 154 kA at 415 V. The adjustable response current (Ii) can be set between 250 A and 600 A.
With an insulation voltage of 800 V and a maximum rated operational voltage of 690 V AC, this breaker is suitable for various industrial applications. It has a mechanical service life of typically 15,000 switching cycles and electrical endurance ratings of up to 8,000 cycles at 380/415 V. The unit measures 5.5 inches in height, 3 inches in width, and 3 inches in depth, designed for DIN rail mounting.
Environmental specifications include an operating ambient temperature range of -25°C to 70°C and a protection class of IP40 on the front. The breaker is RoHS3 compliant and has an MSL of 1.
| 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 AC 50/60Hz.
The permanent rated current is 50 A, and the operational current is maintained at 50 A across temperatures from 40°C to 70°C.
The breaking capacity (Icu) is 150 kA at 240 V, 70 kA at 415 V, and 10 kA at 690 V. The operating breaking capacity (Ics) is 150 kA at 240 V, 70 kA at 415 V, and 5 kA at 690 V.
The circuit breaker can operate in ambient temperatures from -25 °C to 70 °C.
Yes, the RoHS status is RoHS3 Compliant.