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The Siemens 3VA5150-5EC31-0AA0 is a 3-pole molded-case circuit breaker designed for system protection. It operates with a rated operational voltage of up to 690V AC and 500V DC, with an insulation voltage of 800V.
This circuit breaker has a continuous current rating of 50A at 40°C, with derated values at higher temperatures. Its breaking capacity according to UL 489 is 35kA at 480V and 18kA at 600Y/347V. According to IEC 60947, the breaking capacity (Icu) is 55kA at 415V and 7kA at 690V. The short-circuit making capacity (Icm) is 121kA at 415V.
It features an adjustable overload protection (Ir) from 35A to 50A and an adjustable short-circuit protection (Ii) from 250A to 500A. The overcurrent release type is TM230 with LI protection function. The breaker is designed for HACR Type applications according to UL 489.
Mechanically, it has a typical service life of 15,000 cycles. The dimensions are 140mm height, 76.2mm width, and 76mm depth. It is designed for DIN rail mounting.
| 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 continuous current rating (Iu) is 50 A at 40°C. The frame size current rating is a maximum of 125 A.
The breaking capacity according to UL 489 is 35 kA at 480 V. According to IEC 60947, it is 55 kA at 415 V and 7 kA at 690 V.
This circuit breaker is designed for DIN rail mounting.
The dimensions are 140 mm in height, 76.2 mm in width, and 76 mm in depth.
It offers LI protection with an adjustable overload protection (Ir) from 35A to 50A and an adjustable short-circuit protection (Ii) from 250A to 500A.