ABB 2CTB802341R2400 Overvoltage Protection Device

ABB OVRT240-320PU is a DIN-rail mounted Type 2 surge protective device (SPD) from ABB’s OVR T2 family, engineered to guard 230/240 V single‑phase circuits against transient overvoltages. The plug‑in PU variant, catalog number 2CTB802341R2400, provides a maximum discharge current Imax of 40 kA (8/20 µs), a maximum operating voltage Uc of 320 V, and a voltage protection rating VPR of 1.0 kV. This 1‑pole protector is designed for installation in distribution boards and control panels to divert surge energy away from sensitive equipment such as PLCs, drives, and power supplies in commercial and light industrial environments. ABB’s Type 2 SPD construction and DIN rail mounting enable close placement to protected devices, helping limit transient propagation and reduce the risk of equipment damage in normal 230 V mains installations.