DC Power Distribution Unit DCPD10D is suitable to indoor low voltage DC power system. Mounted in a rack cabinet and connected between the -48V DC power supply and the protected equipment, it can protect the equipment from surge and instantaneous over voltage caused by the outside environment (lightning, electromagnetic radiation interference, etc.) or by the internal subsystems (switching effect, start and stop operation of inductive and capacitive loads), it is a Class C drawer type surge protector for DC power distribution