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Siemens 3RV2031-4BA15-0BA0: S2 Motor Protection, Class 10, Aux. Switches

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ManufacturerSiemens

Part number3RV2031-4BA15-0BA0

Size S2

Class 10

A-release 14-20 A

N-release 260 A

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Motor protection Adjustable overload protection Short-circuit protection Integrated auxiliary contacts Wide operating temperature range Standard switching capacity

Product description

The Siemens 3RV2031-4BA15-0BA0 is a special type Size S2 motor protection circuit breaker offering enhanced functionality. It features a Class 10 thermal release adjustable from 14-20A and a short-circuit release of 260A. This model includes transverse auxiliary switches with 1 NO and 1 NC contacts, ideal for signaling or interlocking in complex control systems. It is designed for standard switching capacity and operates in ambient temperatures as low as -50°C.

This advanced circuit breaker is suitable for demanding industrial applications where precise motor protection and integrated signaling are required. Its robust construction and wide operating temperature range make it reliable in diverse environments, from extreme cold to standard industrial conditions. The inclusion of auxiliary contacts provides added flexibility for control and monitoring.

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Technical specifications

Size	S2
Class	10
A-release	14-20 A
N-release	260 A
Aux. Switches	1 NO+1 NC
Ambient Temp	-50°C
Switching Cycles	250

Common applications

Industrial automation

Motor control

Hazardous area applications

Extreme environment operations

Control panel integration

Compatible systems

Compatible with Siemens SIRIUS 3RV2 series accessories and control panels.

Also known as

Siemens S2 Motor Protector with Aux 3RV2031-4BA15-0BA0 Breaker SIRIUS 3RV2 Special Type

Replaces / compatible with

This special type breaker can replace standard S2 motor protection circuit breakers when auxiliary contacts or extended temperature range are required.

Technical note

Expert tip

Ensure the auxiliary switch wiring is correctly integrated into the control logic to leverage its signaling capabilities effectively.

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Frequently asked questions

What is the benefit of the auxiliary switches on the Siemens 3RV2031-4BA15-0BA0?

The Siemens 3RV2031-4BA15-0BA0 includes 1 NO and 1 NC auxiliary contacts. These contacts can be wired into control circuits for remote signaling of the breaker's status (e.g., tripped or on) or for interlocking functions with other control components.