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Siemens 3RV1021-0JA15 S0 Motor Protection Circuit Breaker

Siemens 3RV1021-0JA15 S0 motor protection circuit breaker.

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ManufacturerSiemens

Part number3RV1021-0JA15

Size S0

Trip Class CLASS 10

A-release 0.7-1 A

Short-circuit release 13 A

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Motor protection Adjustable A-release CLASS 10 tripping Screw terminal connections Transverse auxiliary switch Standard switching capacity

Product description

The Siemens 3RV1021-0JA15 is a Size S0 motor protection circuit breaker designed for effective motor circuit control and protection. It features an adjustable A-release setting from 0.7 to 1 A and a short-circuit release of 13 A. This unit uses screw terminals for secure electrical connections and includes a transverse auxiliary switch with 1 NO and 1 NC contact for signaling.

This circuit breaker is suitable for protecting motors in various industrial applications, including machine tools, conveyors, and pumps, where precise overload and short-circuit protection are critical. The CLASS 10 rating is a standard for motor protection.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RV1021-0JA15. We are dedicated to providing reliable automation components, including legacy and phased-out parts, to ensure your industrial operations continue without interruption.

Technical specifications

Size	S0
Trip Class	CLASS 10
A-release	0.7-1 A
Short-circuit release	13 A
Terminals	Screw
Auxiliary Switch	1 NO + 1 NC
Switching Capacity	Standard
Phase-out	Yes

Common applications

Motor control

Industrial automation

Machine building

Control panels

Conveyor systems

Pump control

Compatible systems

Motor protection applications

Also known as

Siemens 3RV1021-0JA15 SIRIUS 3RV1021-0JA15 Siemens S0 breaker Motor protection relay

Replaces / compatible with

This phased-out product's preferred successor is the Siemens SIRIUS 3RV2 series, specifically the 3RV2011-0JA15.

Technical note

Expert tip

The integrated transverse auxiliary switch provides essential status feedback for PLC integration and safety interlocks.

What happens next?

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Frequently asked questions

What is the trip class of the Siemens 3RV1021-0JA15 circuit breaker?

The Siemens 3RV1021-0JA15 circuit breaker has a CLASS 10 trip class rating. This means it is designed to trip within approximately 10 seconds when carrying three times its rated current, which is suitable for most standard industrial motor protection applications.