Chint Residual current circuit breaker Fi

Used to protect people, fire, cables, and wires, as well as in cases of overload and short circuit. Rated residual current I△n ≤ 30mA provides protection against direct contact in the event of excessive touch current. I△n ≤ 300mA offers preventive fire protection in the case of fault currents. Type AC disconnects for slowly rising and sudden sinusoidal alternating currents. Tripping characteristic: Characteristic B (3-5 ln) protects devices from overload and short circuit while also providing protection for people and long cable runs in TNS and IT networks. Characteristic C (5-10 ln) protects devices from overload and short circuit as well as resistive and inductive loads with low inrush current.