Residual current circuit breaker - short-time delay EFI-4 A G/KV 63/0.03 002062749

Residual Current Device (RCD) EFI-4 A G/KV 63/0.03 is a reliable device designed to protect people and electrical installations from the effects of electric shock and damage caused by short circuits and overloads. It is a key element ensuring safety in every electrical circuit, both in residential and industrial buildings.

This four-pole (4P) switch with a rated current of 63A, mounted on a DIN rail, is characterized by high efficiency and durability. Its construction based on the A G/KV characteristic makes it particularly resistant to interference and surge currents, making it an ideal solution for circuits with receivers generating pulsed differential currents, such as switch-mode power supplies or controllers. The rated differential current value is 30mA, which provides effective additional protection against electric shock.

Application and functionality

This switch finds application in TN-S, TN-C-S, TT and IT networks. It meets safety standards, protecting against indirect and direct contact. Therefore, it is suitable for securing installations in both newly built and modernized facilities. The test button allows regular checking of the correct operation of the switch, which is crucial for ensuring continuous protection. Additionally, the presence of a contact position indicator facilitates quick identification of the device's status – whether it is ON or OFF.

Construction and parameters

The switch has been designed with ease of installation and convenience in mind. Its width of 4 modules allows for efficient use of space in the distribution box. Connection terminals allow connection of wires with a cross-section from 1 to 25 mm², both solid and stranded. The housing with a degree of protection IP20 provides protection against accidental contact and ingress of solid objects. Short-circuit strength at the level of 10 kA guarantees reliable operation in the event of a short circuit in the installation. Additionally, the switch has an impulse withstand voltage of 3kA and a rated impulse withstand voltage Uimp of 4kV. Operation at temperatures from -25°C to +55°C ensures that it can be used in various environmental conditions.