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Siemens 3RV1031-4FA15 Motor Protection Circuit Breaker - 28-40A

Siemens 3RV1031-4FA15 is a Size S2 motor protection circuit breaker with integrated auxiliary switch.

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ManufacturerSiemens

Part number3RV1031-4FA15

Size S2

Class 10

A-release 28-40A

Short-circuit release 520A

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Motor protection Adjustable current setting Class 10 thermal overload Integrated auxiliary switch Screw terminals High current rating

Product description

The Siemens 3RV1031-4FA15 is a Size S2 motor protection circuit breaker designed for higher current applications, offering Class 10 protection. It has an adjustable A-release range of 28 to 40A and a short-circuit release of 520A. This unit includes an integrated auxiliary switch for enhanced control capabilities, utilizing screw terminals for connection.

This circuit breaker is suitable for protecting larger motors where Class 10 thermal overload protection is required, and the integrated auxiliary switch simplifies the integration of status feedback or interlock circuits. It's commonly found in industrial applications like large fan systems, pump stations, and conveyor drives.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation components, provides this phased-out Siemens breaker. We focus on delivering reliable, cost-effective solutions for maintaining your critical equipment.

Technical specifications

Size	S2
Class	10
A-release	28-40A
Short-circuit release	520A
Auxiliary Switch	Integrated
Terminals	Screw
Switching Capacity	Standard

Common applications

Large motor protection

Industrial fans

Pump stations

Conveyor systems

Heavy machinery

Compatible systems

Motor protection applications with integrated signaling

Also known as

3RV10314FA15 Siemens SIRIUS 3RV1031 S2 breaker with integrated aux switch

Replaces / compatible with

This phased-out product's successor is the SIRIUS 3RV2 series, with a preferred successor type of 3RV2031-4UA15. Ensure the auxiliary switch configuration matches your needs.

Technical note

Expert tip

The integrated auxiliary contact on this 40A S2 breaker is commonly used for remote motor status indication or to interface with safety circuits requiring a normally open or normally closed signal.

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Frequently asked questions

What is the maximum motor current this Siemens breaker is rated for?

The Siemens 3RV1031-4FA15 motor protection circuit breaker has an adjustable overload range of 28 to 40A, making it suitable for motors within this current capacity when Class 10 protection is specified.