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Siemens 3RV1021-1GA15 Motor Protection Circuit Breaker w/ Aux Switch

Name: Siemens 3RV1021-1GA15
Brand: Siemens
SKU: 3RV1021-1GA15
Availability: InStock

Siemens 3RV1021-1GA15 Motor Protection Circuit Breaker w/ Aux

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ManufacturerSiemens

Part number3RV1021-1GA15

Size S0

Class 10

A-release 4.5-6.3 A

Short-circuit release 82 A

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Motor protection Class 10 Adjustable overload settings Integrated 1NO+1NC aux switch Screw terminals

Product description

The Siemens 3RV1021-1GA15 is a Size S0 motor protection circuit breaker designed for demanding applications. It features a Class 10 rating, an adjustable A-release range of 4.5 to 6.3 A, and a short-circuit release of 82 A. This breaker includes screw terminals and a transverse auxiliary switch providing 1 normally open (NO) and 1 normally closed (NC) contact for advanced control and signaling.

This circuit breaker is widely used in industrial automation, machine tools, and processing equipment where reliable motor overload and short-circuit protection, coupled with auxiliary signaling capabilities, are essential. It’s ideal for applications requiring status feedback.

As a veteran-owned surplus parts distributor, Stanlo Automation is your premier source for discontinued industrial automation components. Procure the Siemens 3RV1021-1GA15 with confidence, ensuring the longevity and functionality of your critical systems.

Technical specifications

Size	S0
Class	10
A-release	4.5-6.3 A
Short-circuit release	82 A
Auxiliary Switch	1 NO + 1 NC
Terminals	Screw

Common applications

Motor control

Industrial machinery

Automation panels

Machine tools

Process control

Also known as

Siemens 3RV1021-1GA15 SIRIUS 3RV1021-1GA15 Siemens 6.3A motor breaker with aux

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RV2011-1GA15, which offers similar functionality in the newer SIRIUS 3RV2 series.

Technical note

Expert tip

The integrated auxiliary contacts are essential for applications requiring real-time status feedback or integration into safety interlock systems.

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Frequently asked questions

Can the Siemens 3RV1021-1GA15 breaker be used for signaling purposes?

Yes, the Siemens 3RV1021-1GA15 includes a transverse auxiliary switch with 1 NO and 1 NC contacts. These can be wired into control circuits for remote indication of the breaker's status or for interlocking other equipment.