Bosch Rexroth | 4WE6J73-6XEG24N9K4A12B05
4WE6J73-6X/EG24N9K4/A12B05
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The 4WE6J73-6X/EG24N9K4/A12B05 directional spool valve is produced by Bosch Rexroth within the WE Directional Spool Valves series and routes pressure, return, and work lines in hydraulic automation. A nominal size of 6 defines the internal flow paths, while the ISO 4401-03-02-0-05 porting pattern aligns the body with common subplates. Mounting follows the NFPA D03 interface so installers can attach the valve to standardized manifolds without adapters. Electrical actuation uses a 24 V DC coil that accepts a ±10 % voltage swing, and the winding consumes 30 W when energized. The coil is rated for a 100 % ED duty cycle, allowing permanent excitation in continuously cycled machinery. Hydraulic limits reach 350 bar on the pressure, A, and B ports, 210 bar on the tank port, and a maximum flow of 80 l/min, enabling control of medium-capacity cylinders and motors without exceeding the valve’s envelope.
A molded DIN EN 175301-803 (K4) connector encloses the coil leads, provides strain relief, and prevents reversed insertion during service. The housing achieves IP65 ingress protection when the plug is sealed, blocking dust and low-pressure water jets in factory environments. Thermal design allows the coil surface to reach 120 °C without degrading insulation, so the valve remains reliable near hot power units. A maximum switching frequency of 4.2 cycles per second in direct-current operation supports moderate actuation rates without overheating. Fluid cleanliness must meet ISO 4406 code 20/18/15; maintaining this level keeps the precision-ground spool free of abrasive particles, preserves response time, and extends seal life in demanding production systems.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Surface Temperature Max
120 °C
Duty Cycle
100% ED
Electrical Connector
DIN EN 175301-803 (K4)
Ingress Protection
IP65
Max Flow (dc)
80 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Switching Frequency
4.2 1/s (DC)
Max Tank Port Pressure (t)
210 bar (DC)
Mounting Interface
NFPA D03
Nominal Power
30 W
Nominal Size
6
Nominal Voltage
24 V DC
Porting Pattern
ISO 4401-03-02-0-05
Voltage Tolerance
±10%
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