Bosch Rexroth | 4WE6HA6XEG24N962SO43A-1221A
4WE6HA6X/EG24N9/62SO43A-1221A
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The 4WE6HA6X/EG24N9/62SO43A-1221A directional spool valve is built by Bosch Rexroth within the WE Directional Spool Valves series to shift hydraulic flow between actuator ports in automated machinery. It is actuated by a wet-pin high-power solenoid that draws 30 W at a nominal supply of 24 V DC, so standard industrial power rails can drive the coil. A voltage tolerance of ±10 % accommodates minor line variation, while a rated current of 1.25 A defines the electrical load for system sizing. Continuous energization is possible because the duty cycle is 100 % ED and the permitted coil surface temperature reaches 120 °C. A concealed manual override identified as N9 lets maintenance personnel reposition the spool without electrical power. Accurate sub-plate location is provided by a locating hole fitted with an ISO 8752-3×8-St locking pin, and the mounting face follows the ISO 4401-03-02-0-05 porting pattern that also matches the NFPA D03 interface for interchangeability.
The hydraulic section withstands operating pressures up to 350 bar, enabling use in high-pressure circuits such as clamping or feed drives. Tank return connections can accept 210 bar, so back-pressure in the reservoir line will not force an internal leak. The valve channels as much as 80 l/min, allowing medium-flow pumps to reach full actuator speed without excessive Δp. Dynamic response is aided by a maximum switching frequency of 4.2 cycles per second, giving control systems the option of rapid on-off modulation. Together these ratings position the 4WE6HA6X/EG24N9/62SO43A-1221A for precise, repeatable flow direction in continuous-duty hydraulic automation.
Technical Specifications
Duty Cycle
100% ED
Locating Hole
With Locking Pin ISO 8752-3x8-St
Manual Override
Concealed (N9)
Max Coil Surface Temperature
120 °C
Max Switching Frequency (dc)
4.2 1/s
Max Tank Port Pressure (dc)
210 bar
Maximum Flow (dc)
80 l/min
Maximum Operating Pressure
350 bar
Nfpa Port Pattern
D03
Nominal Power (dc)
30 W
Nominal Voltage
24 V DC
Porting Pattern
ISO 4401-03-02-0-05
Rated Current (24 V Dc)
1.25 A
Solenoid Type
Wet-Pin High Power
Voltage Tolerance
±10%
1620 Old Apex Road
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