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Siemens 3RV2042-4KA10 S3 Motor Protection Circuit Breaker

Siemens 3RV2042-4KA10 Size S3 Motor Protection Circuit Breaker

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ManufacturerSiemens

Part number3RV2042-4KA10

Size S3

Motor Protection Yes

Class 10

A-release 57-75 A

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

Product description

The Siemens 3RV2042-4KA10 is a Size S3 motor protection circuit breaker operating under Class 10 standards. It features an adjustable overload current setting (A-release) from 57 to 75 Amps and a short-circuit release (N-release) of 975 Amps. This breaker is equipped with screw terminals, offers increased switching capacity, and a significant 100 kA breaking capacity.

This circuit breaker is designed for reliable motor protection in industrial applications requiring precise overload settings and high fault current handling. Its use cases span across manufacturing plants, material handling systems, and machinery automation where motor integrity is paramount.

Stanlo Automation, a veteran-owned supplier, stocks the Siemens 3RV2042-4KA10. We are dedicated to providing high-quality surplus industrial automation components and exceptional service to our customers.

Technical specifications

Size	S3
Motor Protection	Yes
Class	10
A-release	57-75 A
N-release	975 A
Terminals	Screw
Switching Capacity	Increased
Breaking Capacity	100 kA

Common applications

Motor control

Industrial automation

Manufacturing

Material handling

Machine tools

Heavy duty applications

Compatible systems

Siemens 3RV2 Series

Also known as

Siemens 3RV20424KA10 3RV2 S3 57-75A breaker Siemens motor starter protector

Replaces / compatible with

This Siemens 3RV2042-4KA10 is a Class 10 motor protection circuit breaker. It provides standard tripping characteristics for motor protection applications within its specified current range.

Technical note

Expert tip

Ensure the selected overload setting on the Siemens 3RV2042-4KA10 is appropriately matched to the motor's full load current to provide effective protection without causing nuisance trips.

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Frequently asked questions

What is the short-circuit release (N-release) rating for the Siemens 3RV2042-4KA10?

The Siemens 3RV2042-4KA10 features a short-circuit release (N-release) rating of 975 Amps. This ensures rapid disconnection in the event of a short circuit, protecting the motor and system.