4-K-SPS control PCB Our high-performance control PCB features NPN output capability and supports both 12 V and 24 V DC systems, making it compatible with a wide range of PLC modules. Built with imported MOSFETs for improved efficiency and performance. Protection and isolation technology Optocoupler isolation prevents damage from electrical faults such as short circuits or overloads, keeping your PLC/controller safe under all conditions. Compact flame-retardant enclosure Designed to fit in tight spaces, this compact unit can be mounted easily on 35 mm DIN rails, streamlining installation and minimizing wiring complexity. Powerful current handling Capable of up to 5 A per channel, suitable for driving hydraulic/pneumatic solenoid valves and other industrial devices that require a robust power supply. Use scenarios - In automation panels to drive multiple 12/24 V DC solenoid valves controlled by a PLC module. - In safety-critical control systems where optocoupler isolation protects controllers from faults. - In compact machine control cabinets where DIN rail mounting and a flame-retardant enclosure save space and reduce wiring complexity.