ABB OVRT240150PTSU Overvoltage Protection Relay

ABB OVRT240150PTSU is a single-pole DIN-rail surge protective device (SPD) in ABB’s OVR-T2 family, designed to guard single-phase loads on 240–277 VAC networks against transient overvoltages. It features a nominal discharge current of 5 kA and a maximum discharge current of 15 kA, with a maximum continuous operating voltage (MCOV) of 320 V AC and a voltage protection rating (VPR) of 1.0 kV, suitable for protecting equipment connected to 240–277 VAC systems. The device is intended for DIN rail mounting in electrical panels and upstream protection is required by design, as indicated by its SCCR rating of 200 kAIC. For maintenance, ABB provides a replacement cartridge OVRT240150CU. Typical applications include safeguarding sensors, controllers, drives, and other control electronics in industrial and building automation environments where surge protection for single-phase power is needed. This model aligns with ABB distributor listings and the OVRT2 surge protection range, offering reliable, compact protection for compact control panels and motor control centers.