Bosch Rexroth | 4WE6H6XEG24N9K72L62SO407-AN
4WE6H6X/EG24N9K72L/62SO407 AN
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The 4WE6H6X/EG24N9K72L/62SO407 AN directional spool valve is manufactured by Bosch Rexroth within the WE Directional Spool Valves series and directs hydraulic flow in automated machinery. The coil operates on a nominal voltage of 24 V DC, and a voltage tolerance of ±10 % keeps the magnetic force stable when supply levels fluctuate. Nominal power consumption is 8 W, limiting heat generation in control cabinets. A maximum coil surface temperature of 85 °C defines the thermal ceiling for continuous duty. Electrical connection is provided by an M12 × 1 four-pin plug coded K72L, with pin 4 carrying 24 V DC and pin 3 serving as ground to simplify wiring. The housing achieves an IP65 protection class, guarding internal parts against dust and water jets. A concealed manual override lets maintenance staff shift the spool mechanically when electrical power is unavailable, supporting safe start-up or shutdown procedures.
The hydraulic section withstands 315 bar at ports A, B, and P, while the tank port T is limited to 210 bar, enabling the valve to manage medium-pressure circuits. Continuous flow capability reaches 60 l/min, matching the output of compact pumps. The spool may be actuated at a maximum switching frequency of 2 Hz, establishing the upper limit for rapid on-off cycles. A 100 % duty cycle (S1) permits the solenoid to remain energized without rest periods. Fluid must meet cleanliness class ISO 4406 20/18/15 to protect the precision-ground spool surfaces. Mounting follows the ANSI B93.9 (D03) porting pattern, allowing direct installation on standard subplates. An Mttfd of 300 years indicates a very low probability of dangerous failure in safety-related applications, rounding out the reliability data for this valve.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Duty Cycle
100% (S1)
Electrical Connector
M12x1, 4-pin (K72L)
Manual Override
Concealed
Max Coil Surface Temperature
85 °C
Max Operating Pressure (a/b/p)
315 bar
Max Operating Pressure (t Port)
210 bar
Max Switching Frequency
2 1/s
Maximum Flow (dc)
60 l/min
Mttfd
300 years
Nominal Power
8 W
Nominal Voltage
24 V DC
Pin Assignment
4=24V DC, 3=GND
Porting Pattern
ANSI B93.9 (D03)
Protection Class
IP65
Voltage Tolerance
±10%
1620 Old Apex Road
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