2CTB812111R2300

The ABB OVR T1-T2 3N 100-255 P TS is a Type 1+2 surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by lightning and switching events. It is intended for three-phase, four-wire electrical distribution systems with neutral, including compatible TN-S and TT earthing arrangements. The device mounts on a DIN rail and includes status indication and auxiliary signaling contacts.