2CTB803982R0500

The ABB OVR T2 1N 40-350 P TS QS (2CTB803982R0500) is a Type 2 surge protective device designed to protect low-voltage electrical installations and connected equipment against transient overvoltages caused by indirect lightning strikes and switching operations. It is suitable for 230/400 V AC distribution systems with TT and TN-S earthing arrangements and is compatible with ABB System pro M compact modular equipment.

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 an auxiliary signaling contact (TS) for remote indication of the device's operating status and a plug-in design for convenient maintenance and cartridge replacement. With a 1.5 kV voltage protection level and IP20 protection rating, it is intended for DIN-rail mounting in suitable electrical distribution enclosures.