Bosch Rexroth | 4WE6D73-6XEG96N9K4A12B12
4WE6D73-6X/EG96N9K4/A12B12
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The 4WE6D73-6X/EG96N9K4/A12B12 valve is manufactured by Bosch Rexroth as part of the WE Directional Spool Valves series and shifts hydraulic flow paths in automated machinery. Its solenoid is wound for 100 V AC at 50/60 Hz, and the coil draws a switch-on power of 220 VA. After energization, holding power falls to 50 VA while the current stabilizes at 0.31 A. A continuous duty rating of 100 % ED permits uninterrupted operation. The winding uses insulation class H for thermal endurance, and the coil surface may reach 120 °C without exceeding design limits. Electrical termination is via a K4 plug that conforms to DIN EN 175301-803, supporting straightforward field wiring.
The mounting face follows the ISO 4401-03-02-0-05 porting pattern to integrate with standard manifolds. Hydraulic limits include a maximum operating pressure of 350 bar on ports A, B, and P, while the tank port tolerates up to 160 bar. Flow capacity reaches 60 l/min, matching medium-size actuator circuits. A 1.2 mm throttle insert in port P, identified as B12, helps moderate inlet surges. The concealed manual override designated N9 allows spool actuation when power is absent and can be used with tank pressures up to 50 bar. Environmental protection meets IP65, preventing dust ingress and low-pressure water jets when the plug is correctly installed.
Technical Specifications
Coil Voltage
100 V AC 50/60 Hz
Duty Cycle
100% ED
Electrical Connection
K4 (DIN EN 175301-803)
Holding Power (ac)
50 VA
Insulation Class (ac)
H
Manual Override
Concealed (N9)
Manual Override Max Tank Pressure
50 bar
Max Coil Surface Temperature (ac)
120 C
Max Flow (ac)
60 l/min
Max Operating Pressure (a,b,p)
350 bar
Max Tank Port Pressure (ac)
160 bar
Porting Pattern
ISO 4401-03-02-0-05
Protection Class
IP65
Rated Current (50/60 Hz)
0.31 A
Switch-on Power (ac)
220 VA
Throttle Insert (p)
1.2 mm (B12)
1620 Old Apex Road
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