Bosch Rexroth | 4WE6D73-6XEG24N9K72LA12-AN
4WE6D73-6X/EG24N9K72L/A12 AN
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The 4WE6D73-6X/EG24N9K72L/A12 AN valve is produced by Bosch Rexroth for the WE Directional Spool Valves series and serves as an electrically actuated control element in hydraulic automation. It follows the ANSI B93.9 porting pattern, allowing straightforward installation on standardized manifolds. Electrical actuation is provided by a 24 V DC coil that draws 1.25 A, ensuring consistent spool shifting force. The coil surface may reach 120 °C during duty cycles, so wiring and mounting materials must tolerate that temperature. Class F insulation protects the windings against thermal stress at these elevated temperatures. An M12x1 four-pole connector coded A forms the electrical interface, simplifying plug-and-play integration with machine harnesses. The housing carries an IP65 rating that keeps dust and low-pressure water jets from affecting the solenoid. A suppressor diode is integrated for interference suppression, reducing switch-off voltage peaks on the control circuit. Hydraulic oil fed to the unit must meet ISO 4406 cleanliness level 20/18/15 to prevent spool wear.
A concealed manual override allows local actuation without energizing the solenoid and is rated for tank pressures up to 50 bar. The valve passes a maximum direct current flow of 80 l/min, supporting medium-size actuator groups. Working ports p, a, and b withstand operating pressures up to 350 bar, while the tank port tolerates 210 bar, ensuring compatibility with high-pressure systems. The magnetic circuit limits switch-off overvoltage to 500 V, protecting upstream electronics from transients. Proper assembly requires tightening the M5 mounting screws to 7 Nm to secure the body against the subplate. These hydraulic and electrical limits define reliable service parameters for automated presses, molding machines, and other high-demand equipment.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Max Surface Temperature
120 C
Connector Type
M12x1 4-Pole (Coding A)
Ingress Protection
IP65
Insulation Class (dc)
F
Interference Suppression
Suppressor Diode
Manual Override
Concealed
Manual Override Tank Pressure Max
50 bar
Max Flow (dc)
80 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Tank Port Pressure (t)
210 bar
Mounting Screw Torque (m5)
7 Nm
Nominal Voltage
24 V DC
Porting Pattern
ANSI B93.9
Rated Coil Current
1.25 A
Switch-off Overvoltage Max
500 V
1620 Old Apex Road
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