Bosch Rexroth | 4WRZ10E50-7X6EG24N9ETK4M
4WRZ10E50-7X/6EG24N9ETK4/M
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The 4WRZ10E50-7X/6EG24N9ETK4/M proportional directional valve is produced by Bosch Rexroth in the WRZ Proportional Directional Valves series. It meters hydraulic fluid so that actuators in automated machinery receive controlled flow and direction. The solenoid operates on a rated voltage of 24 V DC, and its coil resistance is 4.8 Ω at 20 °C, allowing drive electronics to calculate appropriate current limits. A maximum coil current of 1.5 A provides full spool displacement while protecting the winding. The coil may reach up to 150 °C without damage, enabling continuous duty in warm manifolds. Environmental protection is IP65, so the housing resists dust and low-pressure water jets. The electrical interface uses a DIN EN 175301-803 plug for quick wiring, and a concealed manual override lets technicians shift the spool mechanically during commissioning. The unit weighs 7.8 kg, a consideration for manifold support brackets.
The valve follows mounting pattern ISO 4401-05-05-0-94, meaning it bolts to standard size 05 subplates. At a pressure drop of 10 bar it passes a nominal flow of 50 l/min, giving predictable actuator speed calculations. Main ports withstand 315 bar operating pressure, while the return line to port T with internal drain is limited to 30 bar. Pilot supply and pilot drain are both internal, eliminating external lines. A command value overlap of 15 % defines the dead-band around the neutral position for stable closed-loop control. Approved hydraulic media are mineral oils of types HL or HLP conforming to DIN 51524, and fluid cleanliness must stay at ISO 4406 class 20/18/15 to avoid spool wear. Together these parameters let system designers size pumps, choose filtration, and program electronics for consistent proportional motion.
Technical Specifications
Coil Resistance (20 °c)
4.8 Ω
Command Value Overlap
15%
Electrical Connection
DIN EN 175301-803
Fluid Cleanliness (main)
ISO 4406 20/18/15
Fluid Type
Mineral Oil (HL, HLP) DIN 51524
Ip Rating
IP65
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Operating Pressure (main)
315 bar
Mounting Pattern
ISO 4401-05-05-0-94
Nominal Flow (Δp=10 Bar)
50 l/min
Pilot Supply/drain
Internal/Internal
Rated Voltage
24 V DC
Return Pressure Port T (int. Drain)
30 bar
Weight
7.8 kg
1620 Old Apex Road
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