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Siemens 3RV1021-1EA15 Motor Protection Circuit Breaker with Aux Switch

Name: Siemens 3RV1021-1EA15
Brand: Siemens
SKU: 3RV1021-1EA15
Availability: InStock

Siemens 3RV1021-1EA15 Motor Protection Circuit Breaker w/ Aux

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ManufacturerSiemens

Part number3RV1021-1EA15

Size S0

Class 10

A-release 2.8-4 A

Short-circuit release 52 A

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12-month warranty

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Motor protection Class 10 Adjustable current setting Integrated auxiliary contacts Screw terminals

Product description

The Siemens 3RV1021-1EA15 is a Size S0 motor protection circuit breaker featuring a Class 10 rating and an adjustable A-release range of 2.8 to 4 A. It includes a short-circuit release of 52 A and screw terminals. Crucially, this model comes equipped with a transverse auxiliary switch providing 1 normally open (NO) and 1 normally closed (NC) contact for signaling or control purposes.

This circuit breaker is designed for comprehensive motor protection and is suitable for use in control panels, automation systems, and machinery where auxiliary signaling is required. Industries like food and beverage processing, material handling, and water treatment commonly utilize such components.

Stanlo Automation, a proud veteran-owned surplus distributor, offers a wide selection of discontinued industrial automation parts. Secure your Siemens 3RV1021-1EA15 with confidence, knowing you're getting a reliable component from a trusted supplier.

Technical specifications

Size	S0
Class	10
A-release	2.8-4 A
Short-circuit release	52 A
Auxiliary Switch	1 NO + 1 NC
Terminals	Screw

Common applications

Motor control circuits

Automation systems

Control panels

Machine building

Signaling circuits

Also known as

Siemens 3RV1021-1EA15 SIRIUS 3RV1021-1EA15 Siemens S0 breaker with aux

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RV2011-1EA15, which may offer updated features or form factor.

Technical note

Expert tip

Ensure the transverse auxiliary switch is properly wired for its intended signaling or interlocking function in your control system.

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Frequently asked questions

What type of auxiliary contacts are included with the Siemens 3RV1021-1EA15?

The Siemens 3RV1021-1EA15 circuit breaker is equipped with a transverse auxiliary switch that provides one normally open (NO) and one normally closed (NC) contact. These are used for remote indication or interlocking functions.