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Siemens 3RV2742-5FD10 S3 Circuit Breaker, 35A

Siemens 3RV2742-5FD10 S3 circuit breaker for system protection.

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ManufacturerSiemens

Part number3RV2742-5FD10

Frame Size S3

Approval UL 489, CSA C22.2 No. 5-02

Thermal Release (A-release) 35 A

Short-Circuit Release (N-release) 455 A

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System protection UL 489 & CSA approved S3 frame size Thermal and short-circuit release Screw terminal connections

Product description

The Siemens 3RV2742-5FD10 is a robust S3 frame size circuit breaker designed for critical system protection. It offers a thermal overload release of 35 A and a short-circuit release of 455 A, providing dependable safeguarding for industrial electrical systems. This component is certified to UL 489 and CSA C22.2 No. 5-02 standards and features a screw terminal for secure installation.

This circuit breaker is suitable for protecting medium to large industrial motors, power distribution circuits, and heavy-duty machinery in sectors like manufacturing, mining, and energy. Its specifications ensure protection against overloads and severe short circuits.

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Technical specifications

Frame Size	S3
Approval	UL 489, CSA C22.2 No. 5-02
Thermal Release (A-release)	35 A
Short-Circuit Release (N-release)	455 A
Terminal Type	Screw Terminal

Common applications

Motor protection

Industrial power distribution

Mining equipment

Energy sector

Heavy manufacturing

Compatible systems

Suitable for integration into Siemens industrial control systems and panels requiring UL 489 and CSA certified protection for S3 frame size applications.

Also known as

Siemens S3 35A breaker 3RV2742-5FD10 system protection 455A

Replaces / compatible with

This Siemens circuit breaker serves as a compatible component or replacement for systems requiring an S3 frame size with 35A thermal and 455A short-circuit protection within the 3RV2 series.

Technical note

Expert tip

The 455A short-circuit release provides effective protection against high fault currents, crucial for large motor applications.

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Frequently asked questions

What is the thermal trip setting for the Siemens 3RV2742-5FD10?

The Siemens 3RV2742-5FD10 features a thermal overload (A-release) setting of 35 A, designed for the protection of industrial motors and circuits against sustained overcurrents.