Residual current circuit breaker 40A, 30mA, 4-pole type AC RCD/40A/4P NEO 87.848

Safety and protection in your electrical installation

This four-pole residual current circuit breaker (RCCB) NEO with a rated current of 40A and a sensitivity of 30mA is a key element ensuring safety in every circuit. The device is designed to protect against electric shock that may occur in the event of insulation damage or direct contact with live conductors. Its operation is based on the immediate disconnection of the power supply when a leakage current is detected, minimizing the risk of serious consequences.

Functionality and application

The AC type circuit breaker is dedicated to protecting AC circuits (alternating current), which means it effectively reacts to both sinusoidal and pulsating leakage currents. The rated differential current of 30mA provides protection for people against accidental electric shock. Mounting on a standard TH35/DIN rail simplifies and speeds up installation in electrical switchboards, both in residential and industrial buildings. This circuit breaker can be used to protect lighting circuits, socket circuits and electrical appliances exposed to moisture.

Construction and parameters

The circuit breaker is designed for reliability and durability. It has a short-circuit strength of 6kA, which guarantees its resistance to the effects of short circuits in the installation. The width of the device, 4 modules, allows for efficient use of space in the switchboard. The short-trip release provides additional protection against overloads and short circuits. The IP20 degree of protection indicates protection against touching with a finger and solid objects larger than 12.5 mm - typical for devices mounted inside switchboards. Designed to operate at a rated voltage of 230V and a frequency of 50Hz.