Residual current circuit breaker EFI-P4 AC 63/0.1 002061623

Residual Current Device – Reliable Protection for Electrical Installations

This four-pole EFI-P4 AC 63/0.1 residual current device (RCD) is a key element ensuring safety in every electrical installation. It serves to protect against electric shock, both in cases of direct and indirect contact with live conductors, and also protects devices from potential fire hazards resulting from insulation damage. It is an essential device for both professional installers and end-users who care about safety in their homes or businesses.

This RCD is used in TN-S, TN-C-S, TT and IT networks where the neutral and earth conductors are separated. Choosing the appropriate residual current value (0.1 A in this case) is crucial for ensuring optimal protection – lower values (up to 30 mA) are used to protect people, and higher values (up to 300 mA) – to protect against fire. The use of an RCD is required by DIN VDE 0100-482 and IEC 60364-4-482 standards, particularly in the context of fire protection for cables and wires.

Construction and mounting

The EFI-P4 AC 63/0.1 RCD is designed for mounting on a DIN rail, ensuring quick and easy installation. Its width of 4 modules allows for efficient use of space in the distribution board. The connection terminals allow connection of multi-wire and solid core wires with a cross-section of 25 mm², making it suitable for installations with higher loads. Additionally, the terminal design allows the use of insulated busbars on both the upper and lower terminals.

Technical parameters and performance

The RCD is characterized by a rated current of 63 A and a high short-circuit strength of 10 kA. The rated voltage is 415 V at a frequency of 50/60 Hz. The IP20 degree of protection provides protection against finger contact and against the ingress of solid objects larger than 12.5 mm. The impulse withstand voltage is 0.4 kA, which demonstrates its solidity and reliability in emergency situations. The indicator of the actual position of the main contacts facilitates identification of the RCD status (ON/OFF), and the "Test" button allows regular checking of its functionality.