Circuit breakers

The FRCmM is part of our xEffect industrial series for the machine building sector.

These products provide optimal system and additional protection for a wide range of applications. They come with a range of nominal currents and comprehensive optional accessories, as well as features such as a status indicator.

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Overview Models Resources

Design according to

IEC 61008, IEC 62423

Rated current

125 A

Available types

B, Bfq and B+

Core features

Special residual current devices - all-fault-current sensitive
High level of protection against nuisance tripping
Selective versions available
Auxiliary switches available
Contact position indicator red - green
30 mA versions for operator protection available
Modern RCB for 125 A rated current
Fault current/residual current protection and additional protection
Twin-purpose terminal (lift/open-mouthed) at top and bottom
Can be positioned on busbar at top or bottom
Free terminal space despite installed busbar
Z-HD auxiliary switch can be retrofitted
The installation position does not affect the functioning of the device
Tripping is independent of the mains voltage (Type A currents)
50 V AC are required for detecting Type B currents

Reliable protection for machines

These products provide optimal system and additional protection against residual earth leakage currents for a wide range of applications. They come with different tripping characteristics to cater for a variety of electrical systems and components. The devices offer a wide range of nominal currents and comprehensive optional accessories.

The xEffect FRCmM-125 RCCB is available in three different versions:

Type B

All-fault-current sensitive protective devices are designed for use in 50 Hz AC systems featuring electrical equipment such as frequency converters, uninterruptible power supplies, electric vehicle charging systems or high-frequency power converters. These devices correspond to tripping characteristic B as per the IEC 60755 standard and can thus detect all types of fault currents, including pure DC residual currents. In addition, they can also detect all AC residual currents at frequencies up to 100 kHz in undulating (mixed) current applications

Type Bfq

Suitable for use with variable speed drives; designed for household, commercial and industrial applications. This tripping characteristic has been specifically designed for use with frequency converters to prevent nuisance tripping. Protection against all kinds of fault currents.

Type B+

All-current-sensitive RCD switchgear for applications in which DC fault currents may occur. Non-selective, non-delayed. Protection against all kinds of fault currents. Meets the requirements of the VDE 0664-400 standard and thus provides enhanced fire safety.

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

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xEffect FRCmM-125 Type B, Bfq and B+ residual current circuit breakers