... installations against fire hazard due to insulation faults.Residual current circuit breakers are used in housing,tertiary sector and ... ensured for sinusoidal AC residual currents and for pulsed DC residual currents,whether applied suddenly or increasing slowly.Tripping ... 40,63,80ALeakage acting Current30mA,100mA,300mARated leskage nonoperating current(mA)15mA,50mA,150mA,250mABreaking time≤0.1SInm shell ...