2CTB803871R2300

The ABB OVR T2 40-275 P QS (2CTB803871R2300) is a Type 2 surge protective device designed to protect low-voltage electrical installations and connected equipment against transient overvoltages caused by lightning-induced surges and switching operations. Tested in accordance with IEC/EN 61643-11, this single-pole device is suitable for compatible TT, TN-C and TN-S electrical distribution systems. It has a rated AC voltage of 230 V, a maximum continuous operating voltage of 275 V AC, a nominal discharge current of 20 kA and a maximum discharge current of 40 kA, based on an 8/20 μs current waveform. With a voltage protection level of 1.25 kV, the device helps limit surge voltages to protect sensitive electrical and electronic equipment. Its compact, plug-in design is compatible with ABB System pro M compact products and supports 35 mm DIN-rail mounting. The device is suitable for residential, commercial and industrial distribution boards where Type 2 surge protection is required.