Bosch Rexroth | 4WE6D6XEG24N9K72LVSO407-AN
4WE6D6X/EG24N9K72L/VSO407 AN
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The 4WE6D6X/EG24N9K72L/VSO407 AN valve is manufactured by Bosch Rexroth within the WE Directional Spool Valves series to direct hydraulic flow in automated machinery. Its nominal voltage is 24 V DC, so standard control supplies can energize the solenoids. A voltage tolerance of ±10 % permits stable operation during minor supply fluctuations. Nominal power is 8 W in the SO407 coil, limiting heat build-up and energy demand. Because the duty cycle is rated at 100 % ED, the unit can remain energized continuously without overheating. The coil surface may reach 85 °C at full load, a limit that protects insulation. Switching is allowed up to 2 cycles per second, giving moderate response speed for valve actuation. When de-energized, up to 500 V of switch-off overvoltage can appear, so external suppression devices are advised. The hydraulic oil must meet ISO 4406 cleanliness class 20/18/15 to avoid spool wear and sticking.
The valve passes a maximum flow of 60 l/min, allowing medium-size actuator circuits to operate without excessive pressure drop. Ports p, a, and b tolerate operating pressures up to 315 bar, while the t port is limited to 210 bar in direct current service, matching common return line capabilities. An IP65 rating is achieved with the K72L connector, preventing dust and water jets from reaching internal wiring. Electrical connection is via an M12 × 1 four-pin plug, enabling quick replacement in modular manifolds. A concealed manual override identified as N9 lets maintenance personnel shift the spool without electrical power during commissioning or fault diagnosis. The mounting face follows ANSI B93.9, ensuring compatibility with standardized subplates. The complete assembly with two solenoids weighs 1.95 kg, keeping manifold stacks light enough for compact machines.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Max Surface Temperature
85 °C (SO407)
Duty Cycle
100% ED
Electrical Connector
M12x1, 4-Pin (K72L)
Ingress Protection
IP65 (K72L)
Manual Override
Concealed (N9)
Max Flow (dc)
60 l/min
Max Operating Pressure (p/a/b)
315 bar
Max Operating Pressure (t)
210 bar (DC)
Max Switch-off Overvoltage
500 V
Max Switching Frequency
2 1/s (SO407)
Nominal Power
8 W (SO407)
Nominal Voltage
24 V DC
Porting Pattern
ANSI B93.9 (AN)
Voltage Tolerance
±10%
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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