Bosch Rexroth | 4WE6J73-6XEG24N9K4A12
4WE6J73-6X/EG24N9K4/A12
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The 4WE6J73-6X/EG24N9K4/A12 directional spool valve is built by Bosch Rexroth for the WE Directional Spool Valves series. It routes pressurized oil between P, A, B, and T ports in hydraulic automation systems where repeatable on-off flow control is required. The body uses the ISO 4401-03-02-0-05 mounting pattern so it can be installed on industry-standard NG6 manifolds without additional machining. A 24 V DC solenoid supplies actuation torque; the ±10 % voltage tolerance permits reliable switching in mobile or plant power networks that drift from nominal. Electrical connection is made through a DIN EN 175301-803 (K4) plug which simplifies field wiring and allows quick coil replacement. The coil draws 30 W, and the 100 % S1 duty rating lets it remain energized continuously during long machine cycles. Switching can occur up to 4.2 times per second, supporting fast positioning tasks, while a permissible coil surface temperature of 120 °C prevents insulation breakdown under sustained current.
The hydraulic section is rated for 350 bar maximum operating pressure so the valve can be placed in high-pressure supply lines, and it passes up to 80 l/min of oil in direct current operation to serve medium-size actuators. Port T tolerates 210 bar, ensuring the return channel withstands peak back-pressure in regenerative circuits. An IP65 enclosure shields the coil and terminals from dust ingress and low-pressure water jets encountered on outdoor machinery. A concealed N9 manual override allows the spool to be shifted by hand during commissioning or power loss, and the override must only be used when tank pressure stays below 50 bar to avoid excessive effort. Cleanliness class ISO 4406 20/18/15 defines the filtration level required to keep the metering edges free of abrasive particles. The assembly weighs 1.95 kg with both solenoids installed, giving technicians a manageable component for panel or manifold maintenance.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Max Surface Temperature
120 °C
Duty Cycle
100% (S1)
Electrical Connector
DIN EN 175301-803 (K4)
Ingress Protection
IP65
Manual Override
N9 (concealed)
Manual Override Max Tank Pressure
50 bar
Maximum Flow (dc)
80 l/min
Maximum Operating Pressure
350 bar
Maximum Switching Frequency
4.2 1/s
Mounting Pattern
ISO 4401-03-02-0-05
Nominal Power
30 W
Nominal Voltage
24 V DC
Port T Max Pressure (dc)
210 bar
Voltage Tolerance
±10%
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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