4WE6D73-6X/EG12N9K4/A12/62SO43A-1661

The 4WE6D73-6X/EG12N9K4/A12/62SO43A-1661 directional spool valve is produced by Bosch Rexroth within the WE Directional Spool Valves series. Designed to shift hydraulic flow electronically, it employs a 12 V DC solenoid coil for actuation in mobile or stationary automation setups. The coil draws 2.5 A and consumes 30 W of nominal power, enabling rapid response while staying within low-voltage control budgets. Continuous operation is permissible because the solenoid is rated for a 100 % duty cycle, and a voltage window of ±10 % maintains reliable switching when supply levels fluctuate. Wiring is completed through a DIN EN 175301-803 K4 connector, while an IP65 enclosure protects the coil against dust and water spray encountered in industrial environments. A concealed manual override identified by the N9 code permits local shifting during commissioning or power loss without exposing the operator to moving parts. With both solenoids installed the assembly weighs 1.95 kg, allowing straightforward mounting on compact manifolds.

Hydraulically, the valve conforms to nominal size 6 and mounts on subplates that follow the ISO 4401-03-02-0-05 porting pattern, simplifying interchange with other size-matched components. The D73 spool geometry establishes flow paths suited to bidirectional cylinder circuits, and switching damping coded A12 moderates pressure spikes during actuation. In service the P, A, and B ports withstand pressures up to 350 bar, while the tank port is limited to 210 bar, aligning with typical return-line standards. The metering section passes up to 80 l/min under direct-current control, keeping pressure losses within acceptable limits at full load. These hydraulic limits, combined with the electrical characteristics described earlier, position the 4WE6D73-6X/EG12N9K4/A12/62SO43A-1661 as a compact directional control element for automated presses, material handlers, and similar equipment.