Residual current circuit breaker EFI-P4 AC 63/0.5 002061643

Residual Current Circuit Breaker – Reliable Protection for Electrical Installations

This four-pole EFI-P4 AC 63/0.5 residual current circuit breaker is a key element ensuring safety in every electrical installation. It is used to protect against electric shock, both in the case of direct and indirect contact with live parts, and also protects devices from damage caused by insulation failures. This solution is essential for both professional installers and end-users who care about safety in their homes or businesses.

This circuit breaker is used in TN-S, TN-C-S, TT and IT networks, where the neutral and earth conductors are separated. According to standards, residual current circuit breakers with a residual current IΔn ≤ 300 mA are recommended for protection against indirect contact, while IΔn ≤ 30 mA for additional protection (direct contact). It is worth remembering that in installations with a potential fire hazard (e.g., infrared ceiling heaters) a residual current of IΔn = 30 mA is required.

Construction and characteristic features

The EFI-P4 AC 63/0.5 circuit breaker is characterized by a solid construction and high quality workmanship. Mounting is done on a DIN rail, which facilitates and speeds up installation. The connection terminals allow the connection of multi-wire and solid-core wires with a cross-section of 25 mm². The device has a degree of protection IP20, which means protection against touching with a finger and solid objects larger than 12.5 mm. The width of the circuit breaker is 4 modules (72 mm), which allows for efficient use of space in the distribution board.

• High short-circuit resistance: Short-circuit strength at the level of 10 kA ensures reliable operation even in the event of serious disturbances in the network.

• Adapted to different voltages: Designed to operate at a rated voltage of 415 V and a frequency of 50/60 Hz, making it a universal solution for most installations.

• Convenient operation: The test button allows regular checking of the circuit breaker's functionality, and the contact position indicator helps to quickly identify the device's status (ON/OFF).

• Safety of use: Secured terminals minimize the risk of accidental contact with live parts.

• Expandability: The ability to mount additional accessories (auxiliary contacts, release devices) allows you to adapt the functionality of the circuit breaker to the specific needs of the installation.

This model of residual current circuit breaker is particularly recommended where protection against AC currents and high reliability of operation are required. Thanks to its solid construction and advanced functions, it guarantees safety and comfort of use for a long time.