Residual current circuit breaker type AC 4-pole FRCmM-25/4/003 170410

### Safety and protection in your electrical installation

Residual Current Circuit Breaker (RCCB) FRCmM-25/4/003 is a key element ensuring the safety of using the electrical installation. The device is designed to protect people from electric shock and to protect the installation from the effects of short circuits and overloads. Thanks to a residual current sensitivity of 0.03A, the circuit breaker effectively detects leakage currents and instantly disconnects the power supply, minimizing the risk of hazard.

This four-pole AC type residual current circuit breaker with a rated current of 25A is perfect for both new installations and for the modernization of existing ones. Mounting on a DIN rail is quick and intuitive, which will be appreciated by professional installers. Compact dimensions (width 4 modules, depth 70.5 mm) allow for easy adaptation to the existing switchboard.

Functionality and expansion possibilities

The FRCmM-25/4/003 circuit breaker offers a range of practical solutions. Screw and busbar terminals (from the top and bottom) make it easy to connect wires with a cross-section from 1.5 mm² to 35 mm² (solid) and from 1.5 mm² to 16 mm² (stranded). The possibility of adding auxiliary contacts, undervoltage releases and a reclosing device allows you to adapt the circuit breaker's functionality to the specific needs of the installation. The power supply direction is arbitrary, which increases installation flexibility. Additionally, an optical contact position indicator makes it easy to monitor the device's status.

The circuit breaker is characterized by high short-circuit strength (10 kA) and surge current resistance (0.25 kA), which guarantees reliable operation even in difficult operating conditions. Operation in an ambient temperature from -25°C to 55°C allows for use in various environments. The rated impulse withstand voltage of 4 kV further increases safety. The device has a lock to prevent accidental switching on after tripping of the protection. It meets the requirements of protection degree IP20 and pollution degree 2. Made in RAL 7035 – grey – it blends well with most electrical switchboards.