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Siemens 3RV2042-4FA10 S3 Motor Protection Circuit Breaker

Siemens 3RV2042-4FA10 Size S3 Motor Protection Circuit Breaker

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ManufacturerSiemens

Part number3RV2042-4FA10

Size S3

Motor Protection Yes

Class 10

A-release 28-40 A

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Motor protection Adjustable overload Increased switching capacity 100 kA breaking capacity Screw terminals Class 10 rating

Product description

The Siemens 3RV2042-4FA10 is a Size S3 circuit breaker optimized for motor protection with a Class 10 rating. It offers an adjustable overload setting (A-release) from 28 to 40 Amps and a short-circuit release (N-release) of 520 Amps. This model features screw terminals, increased switching capacity, and a high breaking capacity of 100 kA.

This high-performance circuit breaker is suitable for applications requiring robust protection in systems with higher fault current potential. Industries include manufacturing, chemical processing, and heavy equipment operation where reliable motor starting and protection are essential.

Find the Siemens 3RV2042-4FA10 at Stanlo Automation, your trusted veteran-owned source for surplus industrial automation parts. We ensure quality and value for all your component needs.

Technical specifications

Size	S3
Motor Protection	Yes
Class	10
A-release	28-40 A
N-release	520 A
Terminals	Screw
Switching Capacity	Increased
Breaking Capacity	100 kA

Common applications

Motor control

Heavy industry

Manufacturing automation

Chemical plants

Power generation

Machine tools

Compatible systems

Siemens 3RV2 Series

Also known as

Siemens 3RV20424FA10 3RV2 S3 breaker Siemens high capacity circuit breaker

Replaces / compatible with

This part is a Siemens 3RV2 Series motor protection circuit breaker with enhanced breaking capacity. Check Siemens specifications for specific compatibility.

Technical note

Expert tip

When installing the Siemens 3RV2042-4FA10, ensure the surrounding electrical enclosure can withstand the potential fault currents up to its 100kA breaking capacity.

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Frequently asked questions

What is the breaking capacity of the Siemens 3RV2042-4FA10?

The Siemens 3RV2042-4FA10 circuit breaker has an increased switching capacity with a breaking capacity of 100 kA. This makes it suitable for systems where high fault currents may occur.