Bosch Rexroth | 4WE6H6XEG12NK4V
4WE6H6X/EG12NK4/V
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The 4WE6H6X/EG12NK4/V directional spool valve is built by Bosch Rexroth within the WE Directional Spool Valves series. Designed for hydraulic automation, it shifts flow paths by energizing solenoids that move an internal spool. The coil is rated for 12 V DC and draws 2.5 A, so mobile machines with low-voltage supplies can drive it directly. With a nominal power demand of 30 W and a 100 % duty cycle, the solenoid may remain energized continuously without overheating. The coil accepts supply variation of ±10 %, guarding against voltage dips or rises during operation. Insulation class F and a permitted coil surface temperature of 120 °C protect the winding varnish against thermal stress produced by extended on-time. Electrical connection is made through a K4 plug to DIN EN 175301-803, enabling quick replacement and standardized wiring.
Fluid side data reflect typical medium-pressure circuits. The ISO 4401-03-02-0-05 porting pattern fits standard NG6 subplates for straightforward manifold mounting. Ports P, A, and B can be pressurized up to 350 bar, while the T port to tank is limited to 210 bar, establishing safe operating boundaries. The valve handles flow rates to 80 l/min, and the spool can shift up to 4.2 times per second, supporting moderate cycling speeds in servo loops. An IP65 enclosure rating, achieved when the K4 connector is installed, gives protection against dust and low-pressure water jets. FKM seals resist common hydraulic oils and many synthetic fluids to maintain leak-tight service life. Total mass with two solenoids is 1.95 kg, allowing installation without heavy lifting tools.
Technical Specifications
Duty Cycle
100%
Electrical Connector
K4 (DIN EN 175301-803)
Insulation Class (dc)
F
Max Coil Surface Temperature
120 °C
Max Flow (dc)
80 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Switching Frequency (dc)
4.2 1/s
Max Tank Port Pressure (dc)
210 bar
Nominal Power (dc)
30 W
Nominal Voltage
12 V DC
Porting Pattern
ISO 4401-03-02-0-05
Protection Class (k4)
IP65
Rated Current (12 V Dc)
2.5 A
Seal Material
FKM
Voltage Tolerance
±10%
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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