Residual current device ETI EFI-P2 2P 25 A 0.3 A type AC 10 kA (2061231)

This residual current device from ETI is designed to monitor leakage currents in electrical circuits and disconnect the supply when a dangerous residual current occurs. It is used in residential and commercial distribution boards where additional protection against electric shock and insulation faults is required. The device operates without time delay, so it responds immediately to the detected fault and helps limit the consequences of leakage current in single-phase installations. The EFI-P2 model is built in a 1+N configuration, meaning it has one phase pole and one neutral conductor. It is intended for AC networks with a rated voltage of 230/240 V and a frequency of 50/60 Hz. The rated current is 25 A, while the residual operating current is 0.3 A. Type AC indicates that the device is designed to detect sinusoidal alternating residual current, which matches standard AC applications in typical electrical systems. A notable technical parameter is the short-circuit withstand current Inc of 10 kA. This value is important in circuits where high fault currents may occur, as it reflects the device’s ability to operate within the specified network conditions. The unit is mounted on a TH 35 DIN rail, which makes it suitable for standard modular switchboards and simplifies integration alongside other protective devices. With a housing depth of 68 mm, the device should be considered during switchboard layout and space planning. Connection is possible with conductors ranging from 1 mm² to 25 mm², which provides flexibility for different wiring arrangements. The device complies with IEC/EN 61008 and has an IP20 protection rating, so it is intended for installation inside an electrical enclosure rather than in exposed locations. Overall, this ETI residual current device is a practical solution for circuit protection in installations where reliable disconnection on leakage current is required, especially in standard single-phase distribution systems.