Circuit breakers

This residual current operated circuit breaker with integrated overcurrent protection is a high-quality residual current circuit breaker and miniature circuit breaker combination with line voltage-independent tripping and a wide variety of rated tripping currents.

The FRBm4 in 3+N-pole configuration is available as AC and A type. Both types are impulse current resistant up to 250 A. These combined RCD/MCB switches are available with rated currents from 20 to 32 A and in tripping characteristic B, C or D. Their switching capacity is 4.5 kA.

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Overview Models Resources

Rated Currents

up to 32 A

Tripping Characteristics

B, C and D

Rated breaking capacity

4.5 kA

Core features

High-quality RCD/MCB device combination
kLine voltage-independent tripping
Contact position indicator red – green
Fault current tripping indicator white – blue
Compatibility to standard busbar
Twin-purpose terminal (lift/open-mouthed) above and below
Busbar positioning options for line and load terminals
Free terminal space even with busbar installed
Guide for secure terminal connection
3-position DIN rail clip, allows easy removal from existing busbar system
Wide range of accessories suitable for subsequent installation
Rated currents up to 32 A
Tripping characteristics B, C, D
Rated breaking capacity 4.5 kA

Designed to IEC standards

Eaton´s RCBOs adhere to IEC / EN 61009 – a standard covering residual current operated circuit-breakers with integral overcurrent protection (RCBOs) for fixed installation up to 125 A.

All requirements of the product standards are fulfilled and the applicable additional standards are printed on the device itself.

The right RCD/MCB type for every need

When selecting the "correct" RCD/MCB types for individual device-, lighting- and socket circuits, the following must be observed:

Type A: Protects against special forms of residual pulsating DC which have not been smoothed.

Type AC: This type only reliably detects AC fault currents.

Combined protection in a single device

Eaton's high quality standards guarantee comprehensive personal and equipment protection by combining the functionalities of a residual current circuit breaker with those of a miniature circuit breaker. This means our customers spend less time and effort wiring while still protecting the system against overload, short circuit and residual current. Using Eaton's line of RCBOs, your electrical system will increase in safety and reliability.

Maximum safety in railway applications

The xEffect range of protective switchgear also ensures the highest safety standards in railway applications. Thanks to compliance with specific standards such as IEC 61373 (Rolling stock equipment – Shock and vibration) and EN 45545-2 (fire protection of railway vehicles), the devices provide maximum safety and performance in rolling stock applications. In addition to standard switchgear, we also offer a wide range of MCBs and RCDs for the connection of ring cable lugs in railway applications.

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Download Links

Application notes

Quality standards for railway applications

AP003005EN

(PDF 383 KB , 10/06/2021)

Brochures

Protect your passengers and infrastructure

Rail solutions - Rolling stock

(PDF 1 MB , 12/12/2022)

Catalogues

xEffect industrial switchgear range

xEffect industrial switchgear range Catalog, CA003002EN

(PDF 57 MB , 03/03/2021)

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Support from Eaton

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Phone: +44 (0) 1753 608 700 - option 3, then option 1

Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalising on the global growth trends of electrification and digitalisation, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.

xEffect Combined RCD/MCB Device FRBm4 , 3+N-pole