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Siemens 3RV1042-4FA10 S3 Motor Protection Circuit Breaker

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ManufacturerSiemens

Part number3RV1042-4FA10

Size S3

A-release 28-40 A

Short-circuit release 520 A

Terminal type Screw terminal

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Motor protection Adjustable A-release Increased switching capacity Screw terminals Class 10 protection Size S3

Product description

The Siemens 3RV1042-4FA10 is a Size S3 circuit breaker designed for robust motor protection. It offers an adjustable A-release range of 28-40 A and a short-circuit release rating of 520 A. This model utilizes screw terminals for secure electrical connections and boasts increased switching capacity. It adheres to Class 10 protection standards.

This circuit breaker is engineered for demanding industrial applications such as protecting motors in manufacturing plants, material handling systems, and HVAC equipment. Its primary function is to safeguard electrical motors from damage caused by overloads and short circuits, ensuring operational continuity.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, provides the Siemens 3RV1042-4FA10. We pride ourselves on offering cost-effective solutions and quick delivery for obsolete and hard-to-find components, helping you maintain your systems efficiently.

Technical specifications

Size	S3
A-release	28-40 A
Short-circuit release	520 A
Terminal type	Screw terminal
Protection class	Class 10
Function	Motor protection

Common applications

Motor control

Manufacturing equipment

Material handling

HVAC systems

Industrial automation

Power distribution

Compatible systems

Siemens SIRIUS 3RV2 series accessories

Also known as

Siemens S3 breaker 3RV1042-4FA10 motor circuit breaker SIRIUS 3RV1042

Replaces / compatible with

This part is a phased-out product. The preferred successor is the Siemens SIRIUS 3RV2032-4UA10.

Technical note

Expert tip

The screw terminals on the 3RV1042-4FA10 require specific torque settings for safe and effective operation in motor protection circuits.

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Frequently asked questions

What is the trip class of the Siemens 3RV1042-4FA10 motor protection circuit breaker?

The Siemens 3RV1042-4FA10 motor protection circuit breaker is designed with a Class 10 trip characteristic. This ensures reliable protection against overloads for motors with normal starting times.