Combined circuit breaker iCV40N-B32-30-AC B 32A 3-pole 30 mA type AC A9DH3732

RCBO Combination Breaker iCV40N-B32-30-AC

The iCV40N-B32-30-AC combination breaker is an advanced RCBO (Residual Current Breaker with Overcurrent protection) device that integrates the functions of an overcurrent breaker and a residual current device into a single compact unit. This model, with a rated current of 32A and B characteristic, provides comprehensive protection for electrical installations against the effects of short circuits, overloads, and leakage currents.

Design and Technical Parameters

The device is designed as a 3P+N-pole breaker (4 poles total), occupying a standard width of 5 modules in the electrical distribution board with a mounting depth of only 44mm. This design allows for space savings in the distribution board while maintaining full protective functionality.

The rated short-circuit breaking capacity is 6 kA in accordance with the EN/IEC 61009-1 standard, which guarantees effective interruption even of very high short-circuit currents. The rated voltage of the device is 400V, and the operating frequency range includes standard values of 50/60 Hz. The breaker operates in temperatures from -5°C to +60°C, enabling its installation in various environmental conditions.

Protection System and Safety

The AC type residual current protection with a sensitivity of 30mA provides effective protection against electric shock from indirect contact and protects against fire hazards resulting from leakage currents. The B tripping characteristic ensures that the device reacts immediately to short-circuit and overload currents, offering instantaneous operation.

An energy limiting class of 3 and an IP20 protection rating guarantee adequate resistance to environmental conditions typical for indoor installations. Simultaneous disconnection of the neutral (N) pole ensures full isolation of the protected circuit.

Service Functionality and Installation

A special feature of this model is the 2 unique VisiTrip indicators, which significantly reduce servicing time by precisely indicating the faulty circuit and the type of fault. This innovative function enables rapid diagnostics of problems without the need for time-consuming fault searching.

The device is factory-fitted with a locking mechanism, which further increases the safety level of the installation. The cross-sections of the connected conductors range from 1 to 10 mm² for multi-core cables and from 1 to 16 mm² for single-core cables, ensuring connection versatility.

The short-circuit strength Icn of 6000 A according to the EN/IEC 61009-2-1 standard confirms the high reliability of the device even under extreme operating conditions.