2CTB803973R1500

Surge protective device (SPD) Type 2 designed to protect low-voltage electrical installations against transient overvoltage's caused by indirect lightning strikes and switching operations. The ABB OVR T2 3N 40-440 P TS QS is a four-pole, plug-in surge protection device suitable for three-phase systems with neutral. It provides a maximum discharge current of 40 kA and a nominal discharge current of 20 kA (8/20 µs waveform). The device supports TT and TN-S earthing systems, features an auxiliary signaling contact for remote status monitoring, and is designed for 35 mm DIN-rail mounting. It complies with IEC 61643-11 / EN 61643-11 and is compatible with the ABB System pro M compact range.