Shop DIN-rail surge protective devices designed to help protect industrial controls, automation equipment and electrical circuits from transient overvoltage. Their modular rail-mounted construction makes them well suited for installation inside control panels, machinery and electrical enclosures.
Compare DIN-rail SPDs by nominal voltage, AC or DC application, maximum continuous operating voltage, discharge-current rating, protective modes, module configuration and status indication. Select protection that matches both the electrical system and the equipment being protected.
DIN-rail surge protective devices provide compact transient protection inside industrial control and electrical enclosures. They can be installed alongside power supplies, relays, terminal blocks, PLC equipment and other DIN-rail-mounted components.
The SPD must be compatible with the voltage and grounding arrangement of the protected circuit. AC power circuits, DC power circuits and signal circuits can require different surge-protection devices and should not be treated as interchangeable applications.
Control panels may contain PLCs, communication devices, power supplies, sensors and other electronics that can be affected by transient voltage. DIN-rail SPDs allow surge protection to be installed near these devices while maintaining a compact panel layout.
The protection device should be coordinated with upstream surge protection and installed with appropriately short connection conductors according to the manufacturer’s instructions.