Bosch Rexroth | 4WE6HA6XEG24N9K72L-AN
4WE6HA6X/EG24N9K72L AN
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The 4WE6HA6X/EG24N9K72L AN directional spool valve is manufactured by Bosch Rexroth for the WE Directional Spool Valves series and directs hydraulic flow in automation circuits. It is built in size 6 to fit NG6 manifolds, and its interface follows the ANSI B93.9 (NFPA D03) porting pattern for straightforward subplate mounting. In the neutral H configuration, the center position leaves port P open to tank T so the pump can unload while idle. Ports P, A, and B withstand operating pressures up to 350 bar, whereas the tank port tolerates 210 bar in direct-current service. The valve handles a maximum flow of 80 l/min to supply medium-capacity actuators. Electrical power reaches the coil through an M12x1 four-pin connector with an integrated diode that suppresses voltage spikes, and a concealed manual override lets technicians shift the spool without energizing the solenoid. The enclosure achieves IP65 protection, preventing dust ingress and shielding against low-pressure water jets.
The solenoid operates on 24 V DC, and the circuit may deviate by ±10 % without loss of function. At this voltage it draws 1.25 A, producing a 30 W power load that must be supplied by the control system. A 100 % duty cycle in the S1 category permits continuous energization during long production runs. Coil surface temperature can reach 120 °C under sustained operation, so thermal limits must be considered in cabinet layout. The K72L connector design restricts actuation to one switching event per second, setting the maximum switching frequency at 1 Hz. These electrical characteristics ensure reliable spool movement and help integrate the valve into hydraulic automation where consistent response and predictable heat rise are required.
Technical Specifications
Center Position
P-T Open (Symbol H)
Connector Type
M12x1 4-pin with diode (K72L)
Duty Cycle
100% (S1)
Manual Override
Concealed (N9)
Max Coil Surface Temp
120 C
Max Flow (dc)
80 l/min
Max Operating Pressure (p/a/b)
350 bar
Max Switching Frequency
1 1/s (K72L)
Max Tank Port Pressure (dc)
210 bar
Nominal Power
30 W
Nominal Voltage
24 V DC
Porting Pattern
ANSI B93.9 (NFPA D03)
Protection Class
IP65
Rated Current
1.25 A
Size
6 (NG6)
Voltage Tolerance
±10%
1620 Old Apex Road
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