Modular surge protector ETITEC CM T23 275/20 1+1 002440654

Electrical installation protection with ETITEC CM T23 275/20 1+1

This modular surge protector from ETI POLAM, model CM T23 275/20 1+1, is a key element ensuring the safety and reliability of the electrical installation. Designed for mounting on a TH-35 mm DIN rail, it effectively protects against the effects of atmospheric overvoltages and network disturbances. Its compact size – only 1 module – allows for easy integration with existing distribution boards.

Functionality and application

The CM T23 275/20 1+1 surge protector is a type 2 device, which means it provides indirect protection against overvoltages. It is intended for use in TN, TN-S and TT network systems. Its task is to limit the voltage to a safe level of 1.5 kV, protecting connected devices from damage. Optical indication of operation facilitates quick identification of an emergency situation and allows for appropriate action.

The rated discharge current at 20 kA (peak value for an 8/20 impulse) and the maximum discharge current of 40 kA guarantee effective protection even in the event of strong atmospheric discharges. Short-circuit strength at 25 kA further increases its reliability in difficult working conditions.

Installation and compatibility

The ETITEC CM T23 275/20 1+1 surge protector is compatible with wires with a cross-section of up to 10 mm² (single- and multi-core) and 6 mm² (flexible). This allows it to be easily adapted to most electrical installations. The lack of a built-in fuse simplifies the installation and configuration of the device. The degree of protection IP20 provides basic protection against touch and dust, making it suitable for use in dry indoor environments.