- Products - Residual Current Devices

3SL52 RCCBs

  • Overview

    1P+N, 3P+N;
    up to 63 A.

  • Applications and functions

    Switching and isolation function Controlling
    Protection against the effects of sinusoidal alternating earth fault currents
    Protection against indirect contacts and additional protection against direct contacts.
    Protection against fire hazard caused by insulation faults

    Used in residential building, non-residential building, energy sources, industry and infrastructure.

    Type AC: for which tripping is ensured for residual sinusoidal alternating currents, whether suddenly applied or slowly rising.
    Type A: for which tripping is ensured for residual sinusoidal alternating currents and residual pulsating direct currents, whether suddenly applied or slowly rising.

    RCD  with a rated residual current of maximum 30 mA are used for personnel, material and fire protection, as well as for protection against direct contact;
    RCD  with a rated residual current of maximum 300 mA are used as preventative fire protection in case of insulation faults;
    RCD with a rated residual current of 100 mA co-ordinated with the earth system according to the formula IΔn< 50/R, to provide protection again indirect contacts

  • Features

    Electromagnetic type, voltage independent.
    The handle being sealable or equipped with padlock bracket avoids dangerous operation changes (ON / OFF)
    Adequate printing of all data on the front provides long-term identification

  • Technical specifications

    Standard: IEC 61008-1
    Type (wave form of the earth leakage sensed): AC, A
    Trip time type: instantaneous type, selective type
    Number of poles: 1P+N, 3P+N
    Rated current In: 16, 25, 40, 63 A
    Rated voltage Ue: 230/400 V AC
    Rated insulation voltage Ui: 500 V AC
    Rated Frequency Fn: 50/60 Hz
    Rated residual currents IΔn: 10, 30, 100, 300 mA
    Rated conditional short-circuit current: Inc=IΔc= 6000A SCPD fuse 100A Gg
    Making and breaking capacity Im: 1,000 A
    Rated residual breaking capacity IΔm: 1,000 A
    Rated impulse withstand voltage (1.2/50) Uimp: 8 kV
    Dielectric test voltage at ind. freq. for 1 min.: 2.5 kV
    Degree of protection: IP20, with connected conductors

Product Information

Product Information

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