M-4SED6D1X/350CG12K4

The M-4SED6D1X/350CG12K4 is manufactured by Bosch Rexroth for the M-SED Poppet Valves series. It serves as a directional control element in hydraulic automation systems, switching flow paths under solenoid actuation. A wet-pin, detachable coil allows the operator to replace the coil without disturbing the hydraulic section. The coil is specified for 12 V DC input so it can be powered from low-voltage control sources. A continuous duty cycle of 100 % enables the solenoid to remain energized for long periods without thermal derating. Connection to wiring harnesses is made through a 3-pin EN 175301-803 plug, simplifying service. The valve mounts on subplates following the ISO 4401-03-02-0-05 pattern, and its nominal size is 6 which keeps the porting footprint small. Any installation position is permissible, giving designers freedom when orienting manifolds. A maximum operating pressure of 350 bar permits use in high-pressure circuits common to industrial machinery.

The unit accommodates flow rates up to 25 l/min, matching medium-capacity actuators and lines. Its NFPA size D03 aligns with widely used CETOP 3 subplates, ensuring interchangeability across modular stacks. Electrical consumption is 30 W, a value that must be factored into power supply sizing for continuous duty. An IP65 protection class guards the coil and connector against dust ingress and water jets encountered in factory environments. Sealing elements are made from NBR to withstand standard hydraulic oils and moderate temperature ranges. Circuit designation symbol D identifies a 4/2 way configuration, offering two distinct flow positions controlled by the solenoid. The directional function allows actuators to shift between extend and retract paths without additional valves. Overall mass is 2.3 kg so one technician can mount or remove the assembly without hoisting equipment.