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Siemens 3RV2031-4WA15 S2 Class 10 MP Breaker w/ Aux Switches

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ManufacturerSiemens

Part number3RV2031-4WA15

Size S2

Type Motor Protection Circuit Breaker

Trip Class 10

Adjustable Current (A-release) 42-52 A

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Motor protection Class 10 tripping Adjustable 42-52A range 741A short circuit release Integrated 1 NO + 1 NC auxiliary switches Size S2

Product description

The Siemens 3RV2031-4WA15 is a high-performance Size S2 motor protection circuit breaker featuring a Class 10 trip rating and an adjustable A-release range of 42 to 52 A. It offers a robust 741 A N-release for short-circuit protection and includes integrated transverse auxiliary switches (1 NO + 1 NC) for signaling and interlocking functions. Screw terminals ensure secure and reliable connections.

This breaker is ideal for protecting motors with higher current requirements in industrial applications where signaling capabilities are also needed. It is commonly used in manufacturing, material handling, and automation systems requiring precise motor control and status feedback.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3RV2031-4WA15. We are dedicated to providing quality, reliable components to meet your operational needs, ensuring you receive excellent value and expert support.

Technical specifications

Size	S2
Type	Motor Protection Circuit Breaker
Trip Class	10
Adjustable Current (A-release)	42-52 A
Short Circuit Release (N-release)	741 A
Auxiliary Switches	1 NO + 1 NC (transverse)
Terminals	Screw

Common applications

Motor control with signaling

Heavy industry

Automation systems

Material handling

Large fans

Industrial pumps

Compatible systems

Compatible with Siemens Sirius motor protection systems and can be integrated into various industrial control panel designs.

Also known as

Siemens 3RV2031-4WA15 3RV20314WA15 Siemens S2 breaker with aux

Replaces / compatible with

This circuit breaker with auxiliary contacts can replace Siemens motor protection solutions requiring Class 10 tripping, higher current ratings, and integrated signaling.

Technical note

Expert tip

The auxiliary contacts are rated for control circuit voltages and currents and should not be used for switching the main motor load.

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Frequently asked questions

What is the function of the auxiliary switches on the Siemens 3RV2031-4WA15?

The 1 NO + 1 NC transverse auxiliary switches on the Siemens 3RV2031-4WA15 are used for external signaling. They can indicate the status of the main circuit breaker (e.g., open or closed) to a PLC or control system, or be used in safety interlock circuits.