1. Function Personnel and fire protection: Cable and line protection against overload and short-circuits.
2. Selection Rated residual operating current IΔn ≤30 mA: additional protection in the case of direct contact. Tripping class A and AC class A class tripping is ensured for sinusoidal, alternating residual currents as well as for pulsed DC residual currents, whether they be quickly or slowly increase. AC class tripping is ensured for sinusoidal, alternating residual currents, whether they be quickly or slowly increase tripping curve.
3. Certification CB, CE