DC power networks are used in more and more applications and the threat of disturbances due to surge voltages must be taking in to account like for AC power lines.
DS252C-48DC/G surge protectors are designed to protect equipment connected to DC power supplies from lightning surges. It is based on varistors & GSG matched to the network voltage 48Vdc, the varistors have thermal disconnection devices to control any end-of-life case.
DS252C-48DC/G is DIN rail compatible and is connected in parallel on the line to be protected.