- Products - Residual Current Devices

3SB71L-50 RCBOs

  • Overview

    1P+N in 1 modular width (18 mm);
    Up to 50 A;

  • Applications and functions

    Switching and isolation function.
    Protection against overload and short-circuit currents.
    Protection against the effects of sinusoidal alternating protection against indirect contacts and additional protection against direct contacts.
    Protection against fire hazard caused by insulation faults.

    Used in residential building and distribution boards.

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

    RCDs 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.

  • Features

    The combination of an RCCB and a miniature circuit breaker in a compact design.
    The MCB part  protects lines against overload and short circuits and is available in tripping characteristics B and C.
    Electronic Type, voltage dependent
    The earth reference cable  ensures protection against earth leakage in case of loss of supply neutral.

  • Technical specifications

    Standards: IEC 61009-1
    Type (wave form of the earth leakage sensed): AC
    Number of poles: 1+N (1 module)
    Rated current In: 6, 10, 16, 20, 25, 32, 40, 50 A
    Rated voltage Ue: 230 V AC
    Rated insulation voltage Ui: 500 V AC
    Rated Frequency Fn: 50/60 Hz
    Rated residual currents IΔn: 30 mA
    Rated breaking capacity acc.to IEC61009-1 ultimate Icn: 10 kA
    Rated residual breaking capacity IΔm: 10 kA
    Rated impulse withstand voltage (1.2/50) Uimp: 4 kV
    Dielectric test voltage at ind. freq. for 1 min.: 2 kV
    Surge current resistance (wave 8/20): 3,000 A
    Tripping characteristic: B, C
    Degree of protection: IP20, with connected conductors

Product Information

Product Information

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