Detailed description

Type OVR

Protection against lightning and overvoltages for electrical systems and equipment
Type 1 + 2, type 2, type 2 + 3 with integrated Quick Safe technology that automatically disconnects the surge protector from the electrical system at the end of its life.
Standard: IEC 61643-11

Type OVRH

Protection of surge lightning and over voltage surges for electrical systems and equipment
Type 1: Allows mounting immediately behind the secondary transformer, no need to install additional protective equipment such as breakers or fuses before lightning arrester
Type 2: Allows installation from a distribution cabinet, need to install additional protective equipment such as a circuit breaker or a fuse in front of the lightning protector
Standard: UL1449