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Siemens 3RV2031-4DA15 S2 Motor Protection Circuit Breaker

Siemens 3RV2031-4DA15 Size S2 Motor Protection Circuit Breaker with aux contacts.

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ManufacturerSiemens

Part number3RV2031-4DA15

Size S2

Class CLASS 10

A-release 18...25 A

N-release 325 A

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Motor protection Size S2 CLASS 10 Screw terminals Integrated auxiliary switches (1 NO+1 NC) Standard switching capacity

Product description

The Siemens 3RV2031-4DA15 is a Size S2 motor protection circuit breaker featuring a CLASS 10 rating. It is equipped with an adjustable A-release range of 18 to 25 A and an N-release of 325 A, utilizing reliable screw terminals for connection. This standard switching capacity breaker also includes transverse auxiliary switches (1 NO + 1 NC) for integrated signaling or control functions.

This circuit breaker is designed for protecting larger motors and demanding industrial applications. The inclusion of auxiliary contacts expands its utility in control systems, allowing for monitoring of breaker status or integration into interlock circuits in manufacturing plants, processing facilities, and complex machinery.

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Technical specifications

Size	S2
Class	CLASS 10
A-release	18...25 A
N-release	325 A
Terminal Type	Screw terminal
Auxiliary Switches	1 NO + 1 NC

Common applications

Motor control centers

Industrial machinery

Manufacturing automation

Heavy industry

Process control

Power distribution

Compatible systems

Motor control circuits Automation panels PLC integration Status signaling

Also known as

3RV20314DA15 Siemens S2 breaker with aux 3RV2 series S2 breaker

Replaces / compatible with

This Siemens 3RV2031-4DA15 circuit breaker replaces older Siemens S2 size motor protection breakers and is compatible with associated Siemens auxiliary switch modules.

Technical note

Expert tip

The auxiliary contacts are designed for control circuit signaling and are not rated for direct load switching of power circuits.

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Frequently asked questions

What type of auxiliary contacts are included with the Siemens 3RV2031-4DA15?

The Siemens 3RV2031-4DA15 comes equipped with transverse auxiliary switches, specifically one normally open (NO) and one normally closed (NC) contact. These are ideal for signaling status or integrating into control logic.