Residual current circuit breaker IDK-40-2-30-AC 40A 2-pole 30mA type AC A9Z05240

Safety and reliability in your electrical installation

This two-pole residual current circuit breaker with a rated current of 40A and a tripping current of 30mA type AC is a key element ensuring protection against electric shock in electrical installations. Designed to work with sinusoidal circuits, it effectively reacts to dangerous leakage currents, minimizing the risk of hazard to people and equipment. Its compact dimensions (width 2 modules, depth 44mm) allow for easy installation even in crowded distribution boards.

Installation and functionality for professionals and users

Installation is on a DIN rail, which is standard in most distribution boards. The circuit breaker is characterized by a high short-circuit strength of 6kA, which ensures its reliable operation even in the event of overloads or short circuits. Double connection terminals (busbar + wire) and ribbed terminal surfaces facilitate and speed up installation, increasing connection confidence. Additionally, a lock prevents accidental operation of the circuit breaker after switching off. The neutral conductor located on the left side facilitates alignment with overcurrent circuit breakers, which is particularly important when designing and modernizing installations.

Regular testing and key parameters

Regular testing of the residual current circuit breaker is crucial to ensure its proper operation. This model allows you to check the correct operation using the "T" test button - it is recommended to perform the test once every six months for the first 7 years of use. The circuit breaker meets safety standards, and its rated impulse withstand voltage Uimp is 4kV, which guarantees resistance to overvoltages. It is designed to operate at an ambient temperature of -5°C to 40°C and has a protection degree of IP20. The possibility of connecting wires with a cross-section from 1mm² to 35mm² (solid) or from 1mm² to 25mm² (stranded) ensures compatibility with various types of cabling. Power losses are 3.6W at a frequency of 50/60Hz.