| Product Type | Type AC |
| Milli Amps (Ma) | 30 Ma |
| Amper (A) | 40 A |
| Number of Poles | 4 |
Legrand XC3 4X 40A 30Ma Residual Current Switch 403191 Wiring faults, insulation problems, defective appliances or failures in electrical systems can trigger dangerous leakage currents, leading to accidents or electrical fires. Residual current devices can prevent this. These devices provide protection against dangerous shock currents in case of direct or indirect contact with live conductive objects. Residual current protection relays cut the energy in the circuit they are connected to quickly and safely if the threshold differential current is exceeded. In many application areas, it is a necessity to use residual current protection relays with a threshold current not greater than 30 mA in new buildings. This requirement has been applied since 1984 in rooms with a bathtub or shower at 20 A' for non-professional and general use.
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