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Siemens 3RV1021-0GA10 S0 Motor Protection Circuit Breaker

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ManufacturerSiemens

Part number3RV1021-0GA10

Size S0

Motor Protection Yes

Class 10

A-release 0.45-0.63 A

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CAGE: 9NK75

Motor protection Class 10 rating Adjustable thermal trip Screw terminal connection Standard switching capacity Phased-out product

Product description

The Siemens 3RV1021-0GA10 is a Size S0 motor protection circuit breaker operating at Class 10 thermal overload protection. It offers an adjustable trip range (A-release) from 0.45 to 0.63 A, with a short-circuit release set at 8.2 A. This model features screw terminals for connection and standard switching capacity. It is designated as a phased-out product, with the SIRIUS 3RV2 series, specifically the 3RV2011-0GA10, being its successor.

This circuit breaker is a vital component in industrial automation for protecting electric motors from damaging overcurrent conditions. It is commonly applied in sectors like manufacturing, material handling, and HVAC systems to ensure the reliability and longevity of motor-driven equipment.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, provides access to legacy components such as the Siemens 3RV1021-0GA10. We help businesses maintain their operational uptime by sourcing and supplying essential, often hard-to-find, automation parts.

Technical specifications

Size	S0
Motor Protection	Yes
Class	10
A-release	0.45-0.63 A
Short-circuit release	8.2 A
Connection	Screw terminal
Switching capacity	Standard

Common applications

Motor control

Fan protection

Pump protection

Industrial machinery

Automation systems

HVAC equipment

Also known as

Siemens 3RV1021-0GA10 Siemens S0 Motor Breaker SIRIUS 3RV1021

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RV2011-0GA10.

Technical note

Expert tip

This breaker is designed for direct-on-line motor starting applications and requires proper upstream fusing for short-circuit protection.

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Frequently asked questions

What is the short-circuit release current for the Siemens 3RV1021-0GA10?

The Siemens 3RV1021-0GA10 circuit breaker has a short-circuit release (N-release) set at 8.2 Amperes, providing rapid protection against high fault currents. Its adjustable thermal trip range is 0.45 to 0.63 Amperes.