2CTB815710R0700

The ABB OVR T1-T2 3N 12.5-275s P TS QS (2CTB815710R0700) is a combined Type 1 and Type 2 surge protective device designed to protect low-voltage electrical installations and connected equipment against lightning-induced surge currents and transient overvoltage's caused by switching operations. It is suitable for three-phase, four-wire electrical distribution systems with neutral and is designed for installation on a DIN rail. The device provides a lightning impulse current rating of 12.5 kA per protected path, a maximum discharge current of 80 kA, and a maximum continuous operating voltage of 275 V AC. It also includes status indication and a preventive maintenance feature. The TS version supports an auxiliary signaling contact, allowing remote indication of the device's operating status.