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Siemens 3RV1031-4BA15 Motor Protection Circuit Breaker - 14-20A

Siemens 3RV1031-4BA15 is a Size S2 motor protection circuit breaker with auxiliary contacts.

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ManufacturerSiemens

Part number3RV1031-4BA15

Size S2

Class 10

A-release 14-20A

Short-circuit release 260A

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Motor protection Adjustable current setting Class 10 thermal overload Integrated 1NO+1NC auxiliary contacts Screw terminals

Product description

The Siemens 3RV1031-4BA15 is a Size S2 motor protection circuit breaker featuring Class 10 protection. It allows for adjustable current settings from 14 to 20A and has a short-circuit release of 260A. This model includes integrated auxiliary contacts: one Normally Open (NO) and one Normally Closed (NC) for transverse mounting.

This circuit breaker is ideal for protecting medium-sized motors where Class 10 protection is specified, and the integrated auxiliary contacts are beneficial for signaling or control interlocks. Applications include pumps, fans, and general machinery.

Stanlo Automation, a trusted veteran-owned source for surplus industrial automation parts, offers this discontinued Siemens breaker. We specialize in providing legacy components to keep your operations running smoothly and cost-effectively.

Technical specifications

Size	S2
Class	10
A-release	14-20A
Short-circuit release	260A
Auxiliary Contacts	1 NO + 1 NC (transverse)
Terminals	Screw
Switching Capacity	Standard

Common applications

Motor control panels

Industrial machinery

HVAC systems

Pump applications

Machine guarding interlocks

Compatible systems

Motor protection applications with signaling

Also known as

3RV10314BA15 Siemens SIRIUS 3RV1031 S2 breaker with aux contacts

Replaces / compatible with

This phased-out product's successor is the SIRIUS 3RV2 series, with a preferred successor type of 3RV2031-4BA15. The integrated auxiliary contacts may require wiring adjustments for the new series.

Technical note

Expert tip

The transverse auxiliary contacts (1 NO + 1 NC) on this S2 breaker are crucial for remote monitoring and control circuits, allowing for status feedback or safety interlocks.

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Frequently asked questions

Can the Siemens 3RV1031-4BA15 be used with external signaling devices?

Yes, the Siemens 3RV1031-4BA15 features one normally open (NO) and one normally closed (NC) auxiliary contact. These can be wired to signaling devices like lamps or audible alarms, or used in control logic for motor status indication.