Residual current circuit breaker 3P+N 40A 100mA 6kA AC CEC440J

Safety and Protection in Your Installation

Residual Current Device (RCD) 3P+N is a key element ensuring safety in every electrical installation. This device, with a rated current of 40A and a sensitivity of 100mA, effectively protects against electric shock by reacting to earth leakage currents. Its 3P+N design makes it ideal for protecting three-phase circuits with a neutral wire. Withstand to short-circuit current up to 6kA guarantees reliable operation even in difficult conditions.

Functionality and Installation

Installing this RCD is extremely simple thanks to the standard DIN rail system. Compact dimensions (70 mm deep and 4 modules wide) allow for easy placement in a distribution box. The RCD is designed to operate at a rated voltage of 400V and a frequency of 50Hz, making it compatible with most electrical installations in Poland. Suitable for single-wire conductors with a cross-section of 1-25 mm² and multi-wire conductors 1-16 mm², it offers flexibility when connecting different types of wires.

Technical Parameters and Application

This RCD is characterized by high reliability and durability. Rated impulse withstand voltage of 4kV and protection degree IP20 provide resistance to interference and environmental conditions. Electrical endurance of 2000 cycles and mechanical endurance of 4000 cycles guarantee a long service life of the device. Thanks to its design and parameters, this RCD finds application in both domestic and industrial installations, providing effective protection for people and equipment. Additionally, the possibility of expansion with accessories increases its functionality and adapts it to individual installation needs.