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Siemens 3RV1042-4JA10 S3 Motor Protection Circuit Breaker

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ManufacturerSiemens

Part number3RV1042-4JA10

Size S3

A-release 45-63 A

Short-circuit release 819 A

Breaking capacity 100 kA

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CAGE: 9NK75

Motor protection Adjustable A-release Increased switching capacity Screw terminals High breaking capacity (100 kA) Class 10 protection Size S3

Product description

The Siemens 3RV1042-4JA10 is a Size S3 circuit breaker designed for motor protection up to 100 kA. It features an adjustable A-release range of 45-63 A and a short-circuit release of 819 A. This breaker includes screw terminals, increased switching capacity, and operates on Class 10 protection standards.

This high-capacity circuit breaker is suited for protecting larger motors and heavy-duty equipment in industries such as manufacturing, material handling, and power generation. It provides reliable protection against overloads and short circuits, crucial for maintaining system integrity.

As a veteran-owned surplus industrial automation parts supplier, Stanlo Automation offers the Siemens 3RV1042-4JA10. We understand the importance of reliable components and provide a dependable source for parts like these, ensuring your automation systems remain operational.

Technical specifications

Size	S3
A-release	45-63 A
Short-circuit release	819 A
Breaking capacity	100 kA
Terminal type	Screw terminal
Protection class	Class 10
Function	Motor protection

Common applications

Large motor protection

Heavy-duty machinery

Manufacturing

Material handling

Power generation

Industrial automation

Compatible systems

Siemens SIRIUS 3RV2 series accessories

Also known as

Siemens S3 breaker 3RV1042-4JA10 motor protection SIRIUS 3RV1042

Replaces / compatible with

This part is a phased-out product. The preferred successor is the Siemens SIRIUS 3RV2032-4JA10.

Technical note

Expert tip

The 45-63A adjustable range makes the 3RV1042-4JA10 ideal for a wide array of larger industrial motor applications requiring precise overload settings.

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Frequently asked questions

What is the maximum motor power that the Siemens 3RV1042-4JA10 can protect?

The Siemens 3RV1042-4JA10 is designed for motor protection with an adjustable current range of 45-63 A and a short-circuit release of 819 A, suitable for higher power motors. Its 100 kA breaking capacity ensures safety for motors in demanding applications.