Three-stage SPD-24V-DC surge protection device meets standard protection against power surges, voltage surges and disturbances with three stages of protection. Housed in a din rail panel mount case with a protected earth ground. In order to work properly, it is important to have a good connection in E terminal to solid earth ground. Unknown electronic device failure and misbehave in controller units might be avoided by using SPD-24V-DC Features:- 1. Protection provided by high energy MOV and TVS 2. Internal thermal disconnects 3. Status indicator input and output 4. Replaceable modular design, DIN Rail compatible base Application:- All types 24V-DC PLC, HMI, etc., Where to Use: Noisy industrial lines like DC inductive load switching Industrial power panels Requiring a Load dump feature open Long DC caballing in panel board