Residual current circuit breaker EFI-4 A 100/0.1 002062152

Reliable protection in your electrical installation

Residual Current Device (RCD) EFI-4 A 100/0.1 is a key element ensuring the safety of using the electrical installation. The device protects against electric shock, both in the case of direct and indirect contact with live elements. Additionally, it protects devices from damage caused by short circuits and overloads. It is an indispensable component in every modern electrical system, both in residential and industrial buildings.

Functionality and application

The RCD type A is sensitive to alternating residual currents and pulsating DC currents, making it a universal solution for most applications. It will work in TN-S, TN-C-S, TT and IT networks. The use of RCDs is required by safety standards, and their presence significantly minimizes the risk of electrical accidents. The rated current of 100A and sensitivity A (100mA) make the device perfectly suitable for protecting circuits with higher power consumption.

Construction and mounting

The device is designed for mounting on a DIN rail, which ensures quick and easy installation in the distribution board. Compact dimensions – width of 4 modules and depth of 68 mm – allow for efficient use of space in the switchgear cabinet. Connection terminals allow connection of solid and stranded wires with a cross-section from 1 to 25 mm². Additionally, the terminal design allows the use of insulated busbars on both the upper and lower terminals, which facilitates cable organization. The degree of protection IP20 provides protection against accidental contact.

• Short-circuit strength reaches 10 kA, guaranteeing reliable operation even in the event of a short circuit.

• Rated voltage is 400 V, ensuring compatibility with most standard electrical installations.

• The device operates in a wide range of ambient temperatures – from -25°C to +55°C.

• Possibility of expansion with additional accessories (auxiliary contacts, release devices) increases the functionality of the device.

• Flexibility in cable selection thanks to the possibility of connecting cables with a cross-section from 1 to 25 mm².