Bosch Rexroth | 4WRZ10E50-7X6EG24N9K4M
4WRZ10E50-7X/6EG24N9K4/M
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The 4WRZ10E50-7X/6EG24N9K4/M valve belongs to the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth. It modulates flow direction and magnitude in hydraulic automation circuits by shifting its spool in proportion to an electrical command. A standardized ISO 4401-05-05-0-94 mounting pattern allows direct installation on size 05 sub-plates. The solenoid is powered from a 24 V DC supply, and its winding shows 4.8 Ω resistance at 20 °C, setting the base current demand. Continuous regulation is possible because the coil supports a 100 % duty cycle and can carry up to 1.5 A without thermal derating. Connection to the machine harness is made through a DIN EN 175301-803 plug, while an IP65 enclosure shields internal parts from dust and low-pressure water jets. A concealed manual override lets technicians shift the spool mechanically during commissioning or in the event of a control-power failure.
The hydraulic stage passes a nominal flow of 50 l/min across a 10 bar differential, providing stable actuation for medium-capacity actuators. Main pressure capability reaches 315 bar on ports P, A, and B, so the valve can reside in high-pressure circuits, whereas pilot drain pressure at port Y is limited to 30 bar to protect the control passages. Return flow at port T may also face up to 315 bar, allowing back-pressure without compromising function. All service ports use an 11 mm diameter to keep velocity and pressure loss within acceptable limits. NBR sealing elements retain fluid and remain compatible with mineral oil HL or HLP grades defined in DIN 51524. The assembly weighs 7.8 kg, supplying enough mass for vibration damping while still permitting straightforward manifold handling during maintenance.
Technical Specifications
Coil Resistance (20°c)
4.8 Ω
Duty Cycle
100%
Electrical Connector
DIN EN 175301-803
Hydraulic Fluid
Mineral Oil (HL, HLP) to DIN 51524
Ip Rating
IP65
Manual Override
Concealed
Max Current
1.5 A
Max Operating Pressure (main)
315 bar
Max Pilot Drain Pressure (port Y)
30 bar
Max Return Pressure (port T)
315 bar
Mounting Pattern
ISO 4401-05-05-0-94
Nominal Flow (∆p 10 Bar)
50 l/min
Port Diameter (a/b/p/t)
11 mm
Seal Material
NBR
Supply Voltage
24 V DC
Weight
7.8 kg
1620 Old Apex Road
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