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Siemens RC Unit 40A 300mA for 5SY Series

Siemens 4-pole RC unit, 40A In, 300mA, Type AC, for 5SY series.

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ManufacturerSiemens

Part number5SM2642-0

Type RC Unit

Poles 4-pole

Current (In) 40 A

Sensitivity (In) 300 mA

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4-pole protection 40A rating 300mA sensitivity Type AC residual current detection For 5SY series

Product description

The Siemens 5SM2642-0 is a Residual Current (RC) unit designed for use with the 5SY series circuit breakers. This 4-pole unit is specified as Type AC, indicating its suitability for detecting alternating current residual. It has a nominal input current (In) of 40 A and a residual current sensitivity (In) of 300 mA, with a rated operating voltage (Un AC) of 400 V.

This RC unit is a critical safety component, providing protection against electric shock caused by earth faults. It is commonly integrated into electrical distribution systems in industrial, commercial, and residential settings to enhance safety and prevent fires arising from electrical malfunctions. Its 4-pole configuration ensures comprehensive protection across all live conductors.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 5SM2642-0 RC unit. Ensure the safety and compliance of your electrical installations by sourcing reliable safety components from Stanlo Automation. We provide quality surplus parts to meet your maintenance and operational needs.

Technical specifications

Type	RC Unit
Poles	4-pole
Current (In)	40 A
Sensitivity (In)	300 mA
Voltage (Un AC)	400 V
Type of Residual Current	AC

Common applications

Electrical Distribution Panels

Industrial Control Panels

Building Installations

Residential Electrical Systems

Machine Safety

Earth Fault Protection

Compatible systems

Siemens 5SY Series Miniature Circuit Breakers

Also known as

Siemens Residual Current Unit 5SY RC Module

Replaces / compatible with

This RC unit is designed to complement Siemens 5SY series miniature circuit breakers. Ensure compatibility with your specific 5SY model.

Technical note

Expert tip

For proper operation and protection, the Siemens 5SM2642-0 RC unit must be installed in conjunction with a compatible Siemens 5SY series circuit breaker, ensuring correct wiring of all four poles.

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Frequently asked questions

What type of residual current does the Siemens 5SM2642-0 RC unit detect?

The Siemens 5SM2642-0 RC unit is a Type AC device. This means it is designed to detect sinusoidal alternating residual currents, which are typical in many standard AC electrical installations.