Bosch Rexroth | 4WRLE25W3-350SJ-3XG24EK0A1WX02M-756
4WRLE25W3-350SJ-3X/G24EK0/A1WX02M-756
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The 4WRLE25W3-350SJ-3X/G24EK0/A1WX02M-756 belongs to the 4WRL Solenoid Valves series manufactured by Bosch Rexroth for proportional flow control in hydraulic automation. An analog command value range of ±10 V allows the valve to accept standard motion controller signals, while an input impedance of 100 kΩ keeps the control circuit from being heavily loaded. Continuous service is possible because the solenoids are rated for a 100 % duty cycle, and they are powered from a 24 V DC supply that must be able to furnish up to 40 VA. Electrical noise on the reference line is limited to a maximum residual ripple of 2.5 Vpp so spool positioning remains stable. The nominal size of NG 25 defines the mounting envelope and flow paths, and a rated flow of 350 L/min at a 5 bar differential across the control edge permits high-volume actuator movement without excessive pressure loss.
The valve tolerates system pressures up to 350 bar on ports P, A, and B, 280 bar on port X, and 250 bar on ports T and Y, so circuit designers can assign auxiliary functions without exceeding component limits. A minimum pilot pressure of 10 bar is required to shift the spool, and 6.8 cm³ of pilot oil must be available for a full 0–100 % stroke to ensure accurate proportional response. Manifold integration is simplified by the ISO 4401-08-08-0-05 porting pattern, allowing direct mounting to standard subplates. When mated with the proper connector the enclosure achieves IP65 protection, enabling installation in environments exposed to dust or low-pressure jets of water. The assembled unit weighs 19 kg, a value that should be considered when selecting mounting hardware and handling equipment.
Technical Specifications
Command Value Input (a1)
±10 V
Duty Cycle
100%
Input Impedance (a1)
100 kΩ
Maximum Operating Pressure (p,a,b Ext.)
350 bar
Maximum Operating Pressure (port X)
280 bar
Maximum Operating Pressure (ports T,y)
250 bar
Maximum Power Consumption
40 VA
Minimum Pilot Pressure
10 bar
Nominal Size (ng)
25
Pilot Oil Volume (0–100%)
6.8 cm³
Porting Pattern
ISO 4401-08-08-0-05
Protection Class
IP65 (with connector)
Rated Flow (∆p = 5 Bar/control Edge)
350 l/min
Residual Ripple (max)
2.5 Vpp
Supply Voltage
24 VDC
Weight
19 kg
1620 Old Apex Road
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