The ABB OVRT240320PU is a DIN-rail surge protection device (SPD) from the Circuit Breakers, Fuses & Protection category, classified under Surge Arrestors & Suppressors. It is designed to clamp transient overvoltages on low-voltage power distribution panels, protecting downstream equipment from lightning-induced surges and switching transients.
This SPD mounts directly onto a standard DIN rail inside an enclosure, making it straightforward to integrate into new panel builds or retrofit into existing distribution boards. The DIN-rail form factor simplifies installation alongside other modular protection components like MCBs and RCDs.