Bosch Rexroth | 4WE6W73-6XEG24N9K4A12B12
4WE6W73-6X/EG24N9K4/A12B12
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The 4WE6W73-6X/EG24N9K4/A12B12 directional spool valve belongs to the WE Directional Spool Valves series and is manufactured by Bosch Rexroth to route pressurized fluid in automated hydraulic systems. It is energized with a nominal supply of 24 V DC and draws a rated current of 1.25 A, so it can be driven directly from PLC output stages. A DIN EN 175301-803 three-pin (2+PE) connector is provided for quick coil wiring, and the coil withstands up to 500 V switch-off overvoltage to protect upstream switching devices. The concealed manual override lets maintenance staff shift the spool locally while containing the actuation mechanism; this function remains safe as long as tank pressure does not exceed 50 bar during override. Hydraulic ports P, A, and B tolerate 350 bar, whereas the tank port is limited to 210 bar under direct-current operation. A maximum flow of 80 l/min supports medium-capacity circuits, and the ISO 4401-03-02-0-05 mounting interface matches common subplates.
Additional design features improve durability and controllability. A 1.2 mm throttle insert in the P port moderates pressure spikes when the spool shifts, and a built-in switching time increase function lengthens actuation time when required to reduce hydraulic shock. The valve should be supplied with fluid cleanliness no worse than ISO 4406 20/18/15 to limit wear on moving elements. Its IP65 ingress rating seals the solenoids against dust and low-pressure water jets, making it suitable for machine floors with wash-down procedures. The mean time to dangerous failure is calculated at 300 years (EN ISO 13849), supporting applications that require high functional safety availability. With two solenoids installed, the assembly weighs 1.95 kg, allowing straightforward handling during installation or service.
Technical Specifications
Electrical Connection
DIN EN 175301-803 (3-pin 2+PE)
Hydraulic Cleanliness
ISO 4406 20/18/15
Ingress Protection
IP65
Manual Override Max Tank Pressure
50 bar
Manual Override Type
Concealed
Max Flow (dc)
80 l/min
Max Operating Pressure (p, A, B)
350 bar
Max Switch-off Overvoltage
500 V
Max Tank Port Pressure (dc)
210 bar
Mounting Interface
ISO 4401-03-02-0-05
Mttfd (en Iso 13849)
300 years
Nominal Voltage
24 V DC
Rated Current (24 V Dc)
1.25 A
Switching Time Increase
Yes
Throttle Insert (p Port)
1.2 mm
Valve Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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