3RV2031-4WA15

The Siemens SIRIUS 3RV2031-4WA15 features an S2 housing, Class 10 trip rating, 42...52A overload adjustment, 741A instantaneous trip capability, and built-in 1 NO + 1 NC auxiliary contacts. It weighs approximately 1.169 kg.

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Siemens 3RV2031-4WA15 Motor Protection Circuit Breaker (including auxiliary contacts)

Product Positioning

The 3RV2031-4WA15 is an S2 frame model with an overload range of 42...52A. It features Class 10 standard tripping characteristics and has 1NO+1NC auxiliary contacts built-in, making it suitable for general motor protection circuits that require feedback of operating status.

Core Product Advantages and Features

Built-in 1 NO + 1 NC auxiliary contact

The tripped or open status of the circuit breaker can be directly fed back to the control circuit, eliminating the need for additional auxiliary contact modules.

Overload current adjustable from 42 to 52A

The rotary overload current setting corresponds to a motor rated current range of 42 to 52 amps.

Applicable motor capacity is approximately 45kW (400V).

According to the manufacturer's specifications, it is suitable for the protection needs of three-phase motors with a power rating of approximately 45kW at 400V.

Short circuit breaking capacity up to 100kA

It has a breaking capacity of 100kA at 240V, providing ample short-circuit protection margin.

project	Specification
Instantaneous short-circuit trip current (N-release)	741A
Overload adjustment current range (A-release)	42...52A
Break away from level	Class 10
Built-in auxiliary contacts	1 NO + 1 NC (horizontal)
Short-circuit breaking capacity Icu	100kA(240V)/65kA(400V)/8kA(500V)/4kA(690V)
Operating short-circuit breaking capacity Ics	100kA(240V)/30kA(400V)/4kA(500V)/2kA(690V)
net weight	Approximately 1.169 kg
Frame size	S2
Extreme number	3P
Rated insulation voltage	AC 690V
Applicable power supply voltage range	AC 20...690V
Terminal type	Screw terminals
Available wire diameter	2x (1...35mm²) or 1x (1...50mm²)
Protection level	IP20
External dimensions (height x width x depth)	140 x 55 x 149 mm

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