Siemens Circuit breaker for motor protection, N-release 845A


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The SIRIUS circuit breaker 3RV2031-4XA10 from Siemens in size S2 is a compact, current-limiting circuit breaker for load feeders up to 30 kW at AC-3/400 V. Due to a short-circuit protection of 845 A and an adjustable overload protection of 49-59 A, the circuit breaker is ideally suited for the protection of motors.


General data

Design: Circuit breakers for motor protection

Trip class: CLASS 10

Number of poles: 3

Size: S2

Electrical data

Operating voltage: 690 V

Adjustable response current: 49 - 59 A

Operating current at AC-3/400 V: 59 A

Impulse voltage resistance: 6 kV

Mechanical data

Dimensions (W x H x D): 55 x 140 x 149 mm

Connection: A screw terminal Standard switching capacity

Ambient conditions

Operating temperature: -20 °C to 60 °C

Protection rating: IP20

Other parts


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