Bosch Rexroth | 4WE6E73-6XEG24N9K73LA12
4WE6E73-6X/EG24N9K73L/A12
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The 4WE6E73-6X/EG24N9K73L/A12 valve belongs to the WE Directional Spool Valves series produced by Bosch Rexroth and directs hydraulic flow in automated circuits. It is energized with a nominal voltage of 24 V DC, letting it interface with standard machine control supplies, and the coil draws a rated current of 1.25 A so conductors and fusing can be sized accurately. Nominal power is 30 W, indicating the electrical load that must be provided by the cabinet power supply, while a voltage tolerance of ±10 % lets the solenoid remain functional during moderate line variation. The K73L connector uses an M12 × 1 four-pin layout, and pin 4 is reserved for the +24 V DC feed, which simplifies plug-and-play wiring in modular manifolds. An IP65 ingress rating shields the electronics from dust and water spray during wash-down cycles. The valve bolts to sub-plates with the ISO 4401-03-02-0-05 (D03) porting pattern, allowing quick exchange with other D03 components without pipework changes.
Continuous energization is possible because the duty cycle is specified at 100 % ED (S1), preventing coil overheating during long shifts. A maximum operating pressure of 350 bar on ports P, A, and B enables the spool to control high-pressure lines, while the T-port is limited to 210 bar to protect the tank return path. Flow capacity reaches 80 l/min in direct current service so actuators receive adequate volume at rated pressure. The A12 smooth switching version reduces hydraulic shock during spool transitions, and a concealed manual override marked N9 lets maintenance staff shift the spool without electrical power. Switching events can occur up to 4.2 times per second, supporting rapid cycling in servo-controlled machinery. Fluid cleanliness must be kept at ISO 4406 20/18/15 to prevent spool wear and sticking, ensuring the valve maintains consistent response throughout its service life.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Connector Type
M12x1 4-pin (K73L)
Duty Cycle
100% ED (S1)
Ingress Protection (k73l)
IP65
Manual Override
Concealed (N9)
Max Switching Frequency (dc)
4.2 1/s
Maximum Flow (dc)
80 l/min
Maximum Operating Pressure (p/a/b)
350 bar
Maximum T-port Pressure (dc)
210 bar
Nominal Power (dc)
30 W
Nominal Voltage
24 V DC
Pin 4 Assignment (k73l)
+24 V DC
Porting Pattern
ISO 4401-03-02-0-05 (D03)
Rated Current (24 V Dc)
1.25 A
Switching Version
A12 (Smooth)
Voltage Tolerance
±10%
1620 Old Apex Road
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