Residual current circuit breaker 3P+N 100A 30mA 10kA Type A CDA684D

Protection and safety of electrical installations

Residual Current Device (RCD) 3P+N with a rated current of 100A and a tripping current of 30mA is a key element ensuring safety in electrical installations. It provides protection for people against electric shock in the event of insulation failure, and also protects the installation against the effects of short circuits and overloads. This model, of class A, is particularly effective in detecting leakage currents, making it an ideal solution for both domestic and industrial installations.

Installation and application

The RCD is designed for mounting on a DIN rail, which facilitates its installation and replacement. A width of 4 modules allows for efficient use of space in the distribution board. Adapted to work with a voltage of 400V and a frequency of 50Hz, it will work in most standard installations. It accepts multi-wire conductor cross-sections from 1 to 35 mm² and solid-core conductors from 1 to 50 mm², providing flexibility in the selection of power cables. With a lock, preventing accidental disconnection.

Characteristics and parameters

The RCD is characterized by a high short-circuit strength of 10kA, which guarantees its reliable operation even in difficult operating conditions. The rated impulse withstand voltage Uimp is 4kV, and the rated insulation voltage Ui is 500V – this confirms the high quality of workmanship and compliance with safety standards. Power losses are 21.48W. The degree of protection IP20 provides protection against accidental contact, but does not protect against the effects of water. The ambient temperature in operating conditions is in the range of -25°C to +60°C, which allows it to be used in various environments. The possibility of expanding with additional equipment increases the functionality of the device. Surge current withstand capacity is 3kA.