Bosch Rexroth | 4WRLE10V1-85M-3XG24ETK0A1M
4WRLE10V1-85M-3X/G24ETK0/A1M
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The 4WRLE10V1-85M-3X/G24ETK0/A1M valve belongs to the 4WRL Solenoid Valves series and is produced by Bosch Rexroth for closed-loop hydraulic automation. It regulates spool position in response to an electrical command so that flow and pressure can be varied proportionally. The integrated amplifier requires a 24 VDC supply and interprets a ±10 V input signal from the motion controller. An input resistance of 100 kΩ minimizes loading on the signal source, while a permitted residual ripple of 2.5 Vpp prevents excessive noise from disturbing control accuracy. Response sensitivity is better than 0.05 %, enabling small set-point changes to be translated into measurable movement. Hysteresis remains below 0.1 %, reducing reversal error during bidirectional cycles. Continuous service is supported by a 100 % duty cycle, and peak electrical draw is limited to 40 VA when sizing power distribution.
Hydraulic performance is matched to high-pressure circuits, with ports A, B, and P rated up to 280 bar and drain ports T and Y limited to 250 bar. The pilot stage needs at least 10 bar to actuate the main spool, and internal leakage is restricted by a maximum zero flow of 1.7 l/min through the main valve or 1.85 l/min when the pilot path is included. The solenoid winding may reach 120 °C at sustained load, so ambient and oil cooling must keep the assembly below this threshold. An enclosure rating of IP65 protects the electronics and coil from dust ingress and directed water, allowing installation in exposed machine frames. The valve weighs 9 kg, a factor that influences manifold mounting hardware and support brackets.
Technical Specifications
Duty Cycle
100%
Hysteresis
< 0.1%
Input Resistance
100 kΩ
Input Signal (a1)
±10 V
Max Operating Pressure (a, B, P)
280 bar
Max Operating Pressure (t, Y)
250 bar
Max Power Consumption
40 VA
Max Residual Ripple
2.5 Vpp
Max Solenoid Surface Temperature
120 °C
Max Zero Flow (v/v1 Main Valve)
1.7 l/min
Max Zero Flow (v/v1 Main+pilot)
1.85 l/min
Minimum Pilot Pressure
10 bar
Protection Class
IP65
Response Sensitivity
< 0.05%
Supply Voltage
24 VDC
Weight
9 kg
1620 Old Apex Road
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