Residual current device ETI EFI6-P4 4P 16/0.03 A type A 6kA (2061660)

This residual current device from ETI, series EFI6-P4, is designed to monitor leakage currents and disconnect the circuit automatically when insulation faults or a differential current appear. It is used in distribution boards of residential, commercial, and small industrial installations where protection of people and electrical networks against electric shock and fault conditions is required. The unit is built in a 4-pole configuration with 3+N arrangement, making it suitable for three-phase systems with a neutral conductor. The rated current is 16 A, and the residual operating current is 0.03 A, which allows the device to detect even low leakage currents and respond at a sensitive protection level. Type A means the device reacts not only to sinusoidal alternating residual current, but also to pulsating direct residual current, which broadens its use in circuits with household and office loads. The rated AC voltage is 415 V, with a frequency of 50/60 Hz. The short-circuit current rating Inc is 6 kA, which is important for operation in networks where higher fault currents may occur. The product complies with IEC 61008-1, the standard for residual current devices without integrated overcurrent protection. This makes the model appropriate for applications where residual current protection is provided as a separate function in the modular assembly. Installation is carried out on a TH 35 DIN rail, which is the common mounting method for modular devices in electrical panels. The enclosure has an IP20 degree of protection, so the device is intended for installation inside switchboards and is not designed for moisture protection. The device depth is 70 mm, and the terminal design accepts conductors with a cross-section from 1 to 25 mm². These characteristics make the EFI6-P4 a practical option for protecting group circuits in three-phase electrical installations where residual current detection, neutral conductor connection, and compact panel mounting are required.