Bosch Rexroth | 4WRAB6E12-1XG24N9K4VR
4WRAB6E12-1X/G24N9K4/VR
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The 4WRAB6E12-1X/G24N9K4/VR is a proportional directional valve manufactured by Bosch Rexroth in the 4WRA Proportional Directional Valves series. It meters hydraulic flow and selects circuit paths in automated systems that need continuously variable control. External proportional electronics drive the direct-actuated spool, so commanded current shifts the spool position smoothly. The unit uses a supply voltage of 24 V DC to energize its solenoid, matching common industrial power rails. Nominal flow is rated at 12 L/min through size 6 metering slots, a capacity suited for compact actuator loops. The spool carries the symbol E, indicating overlap geometry optimized for fine position regulation. Three switching positions allow centered neutral plus two work directions, providing bidirectional cylinder control. Four ports are arranged in accordance with port pattern ISO 4401-03-02-0-05, enabling interchange with other D03 subplates.
In installation, the valve bolts to a subplate mounting surface that follows the NFPA D03 interface (T3.5.1 R2-2002), which simplifies manifold design in modular stacks. Maximum operating pressure reaches 350 bar, supporting high-load circuits without external pressure reducers. Approved fluids include HL, HLP, HLPD, HVLP, HVLPD, and HFC, letting the same component work with standard mineral oils or water-glycol media. Electrical connection is made through a three-pole plug (2+PE) built to EN 175301-803, ensuring quick disconnection while maintaining protective earth continuity. The design weight of 2 kg permits manual handling during service or retrofit. By combining proportional actuation with this standardized connector and mounting scheme, the valve integrates cleanly into electro-hydraulic automation panels.
Technical Specifications
Actuation
External Electronics (Proportional)
Connector Standard
EN 175301-803
Electrical Connector
3-Pole (2+PE)
Hydraulic Fluids
HL,HLP,HLPD,HVLP,HVLPD,HFC
Max Operating Pressure
350 bar
Mounting
Subplate Mounting
Nfpa Interface
D03 (T3.5.1 R2-2002)
Nominal Flow
12 L/min
Number Of Ports
4
Port Pattern
ISO 4401-03-02-0-05
Size
6
Spool Symbol
E
Supply Voltage
24 V DC
Switching Positions
3
Valve Design
Direct Actuated Spool
Weight
2 kg
1620 Old Apex Road
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