4WE6G6X/EG12N9K40SO859

The 4WE6G6X/EG12N9K40SO859 directional spool valve belongs to the WE Directional Spool Valves series manufactured by Bosch Rexroth for hydraulic automation where electrical actuation governs fluid flow. It operates on a nominal voltage of 12 V DC, so mobile equipment can power the coil directly from vehicle batteries, and the ±10 % voltage tolerance keeps switching performance stable when supply levels fluctuate. A nominal current draw of 2.5 A produces the magnetic force needed to shift the spool while limiting conductor size, and the 30 W nominal power rating restricts heat generation for compact manifold installations. Class F coil insulation tolerates higher winding temperatures, supporting a 100 % ED duty cycle that allows the valve to remain energized continuously without thermal damage. Emergency actuation is available through a concealed manual override coded N9 that prevents accidental engagement, and the Deutsch DT06-2P plug designated K40 provides a sealed electrical connection suitable for harsh outdoor environments. Manifold attachment is achieved through the ISO 4401-03-02-0-05 interface, giving interchangeability with common CETOP 03 cavities, while the NFPA T3.5.1 R2-2002 D03 port pattern aligns with North American block layouts.

The hydraulic section withstands a maximum operating pressure of 350 bar on ports a, b, and p, enabling use in high-pressure circuits, and the tank port endures up to 210 bar so back-pressure does not compromise function. A rated flow capacity of 80 l/min defines the volume the valve can pass without excessive pressure loss, and a maximum switching frequency of 4.2 cycles per second limits actuation speed to protect the magnetic core and spool interface. Internal components are sealed with NBR elastomers that resist standard mineral hydraulic oils. Fluid cleanliness must be maintained at ISO 4406 class 20/18/15 or better to minimize spool wear and sticking, which preserves response accuracy over long service intervals.