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Siemens 3RV1021-4AA15 S0 Circuit Breaker, 11-16A

Siemens 3RV1021-4AA15 size S0 motor protection circuit breaker.

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ManufacturerSiemens

Part number3RV1021-4AA15

Type Circuit Breaker

Size S0

Class CLASS 10

A-Release 11-16 A (adjustable)

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Motor protection Adjustable overload setting Short-circuit protection Includes auxiliary contacts Screw terminal connections Standard switching capacity

Product description

The Siemens 3RV1021-4AA15 is a size S0 circuit breaker for motor protection, rated CLASS 10. It features an adjustable current setting (A-release) from 11 to 16 A and a short-circuit release of 208 A. This breaker utilizes screw terminals, offers standard switching capacity, and includes a transverse auxiliary switch with 1 Normally Open (NO) and 1 Normally Closed (NC) contact. Please note this is a phased-out product.

This circuit breaker is designed to protect electric motors from overload and short circuits in industrial applications. It is commonly found in control panels for conveyor systems, pumps, fans, and other motor-driven equipment across various industries like manufacturing, material handling, and HVAC.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, can help you source this Siemens 3RV1021-4AA15. Secure reliable protection for your motors with our available inventory.

Technical specifications

Type	Circuit Breaker
Size	S0
Class	CLASS 10
A-Release	11-16 A (adjustable)
Short-Circuit Release	208 A
Terminals	Screw
Auxiliary Switch	1 NO + 1 NC
Switching Capacity	Standard

Common applications

Motor Control Panels

Conveyor Systems

Pump Control

Fan Control

HVAC Systems

Industrial Machinery

Compatible systems

Siemens SIRIUS Motor Starters Industrial Control Panels

Also known as

Siemens Motor Circuit Breaker S0 3RV1021 series breaker

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RV2021-4AA15. This breaker is compatible with various motor control circuits requiring S0 size protection.

Technical note

Expert tip

As a phased-out product, ensure availability of spares or consider the successor model 3RV2021-4AA15 for new installations or complete system overhauls.

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Frequently asked questions

What is the adjustable trip range for the Siemens 3RV1021-4AA15?

The Siemens 3RV1021-4AA15 circuit breaker has an adjustable overload protection setting (A-release) that can be set between 11 A and 16 A. This allows for precise motor protection based on its full load current.