2CTB803982R1100

The ABB OVR T2 1N 40-350 P QS (2CTB803982R1100) is a Type 2 surge protective device designed to protect low-voltage electrical installations and connected equipment against transient overvoltage's caused by indirect lightning effects and switching operations. It is suitable for 230/400 V AC distribution systems and is compatible with TT, TN-S and TN-C-S earthing arrangements.

The device features a 1P+N configuration, a maximum continuous operating voltage of 350 V AC, a nominal discharge current of 20 kA and a maximum discharge current of 40 kA (8/20 μs waveform). It incorporates Quick Safe thermal monitoring and a replaceable plug-in protection cartridge for convenient maintenance. An integrated mechanical status indicator allows visual checking of the device's operating condition. Designed for 35 mm DIN-rail mounting, it is suitable for use in residential, commercial and industrial electrical distribution boards.