Bosch Rexroth | 4WE6H73A6XEG24N9K72LA12
4WE6H73A6X/EG24N9K72L/A12
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The 4WE6H73A6X/EG24N9K72L/A12 valve belongs to the WE Directional Spool Valves series from Bosch Rexroth and is used to route hydraulic fluid in automated circuits. It operates on a nominal voltage of 24 V DC so it integrates with common machine control supplies, while a voltage tolerance of ±10 % keeps the coil within safe limits during line fluctuations. The coil draws a rated current of 1.25 A, which combines with a nominal power of 30 W to define electrical load on the control cabinet. A duty cycle of 100 % ED allows continuous energizing without enforced rest periods, and the coil surface may reach 120 °C under heavy service before thermal limits are exceeded. Connection is made through an M12x1 four-pole plug that includes a suppressor diode to reduce inductive voltage spikes; within this connector, pin 4 carries the 24 V DC supply so wiring remains straightforward.
The valve handles a maximum flow of 80 l/min in direct-current actuation, enabling medium-capacity actuator groups to shift reliably. Pressures up to 350 bar are permitted at ports P, A, and B, while port T withstands 210 bar, matching typical return-line ratings. A switching frequency of 1 Hz supports slow but precise position changes in servo-controlled manifolds. The concealed manual override lets maintenance staff reposition the spool when power is absent without exposing moving parts to debris. An ISO 4401-03-02-0-05 porting pattern and an NFPA D03 mounting interface allow direct stacking on standardized subplates, simplifying manifold design. The pattern alignment also keeps centerlines consistent across multiple valves in a bank.
Technical Specifications
Coil Rated Current
1.25 A
Coil Surface Temperature Max
120 °C
Connector Type
M12x1 4-pole with suppressor diode
Duty Cycle
100% ED
Manual Override
Concealed
Max Flow (dc)
80 l/min
Max Pressure (port T, Dc)
210 bar
Max Pressure (ports P/a/b)
350 bar
Max Switching Frequency
1 Hz
Nfpa Mounting Pattern
D03
Nominal Power
30 W
Nominal Voltage
24 V DC
Pin 4 Function
24 V DC supply
Porting Pattern
ISO 4401-03-02-0-05
Voltage Tolerance
±10%
1620 Old Apex Road
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