Bosch Rexroth | 4WRAB6W12-1XG12N9K4MR
4WRAB6W12-1X/G12N9K4/MR
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The 4WRAB6W12-1X/G12N9K4/MR proportional directional valve is manufactured by Bosch Rexroth for the 4WRA Proportional Directional Valves series. The unit governs hydraulic actuators by varying spool displacement to direct flow and pressure. It is a size 6 model that attaches to manifolds through subplate mounting with the ISO 4401-03-02-0-05 interface, enabling quick interchangeability within modular assemblies. A nominal flow capacity of 12 L/min provides controlled movement, while a maximum flow of 30 L/min supports faster cycles when control systems command full stroke. The spool features three positions across four ports, so the circuit can be driven forward, reversed, or held in neutral. The valve tolerates system pressures up to 350 bar, and the return-line T port is rated for 210 bar to avoid back-pressure damage.
Electrical actuation is supplied with 12 V DC delivered through an EN 175301-803 three-pin connector that offers two power conductors and a protective earth. A coil resistance of 4.8 Ω and an inductance of 86 mH establish the current profile and influence response time during position changes. The solenoid consumes up to 30 W, defining heat generation that must be managed by the hydraulic oil flow and ambient conditions. NBR seals contain the working fluid and resist swelling in mineral-based oils, sustaining service life. An IP65 protection class shields the enclosure against dust and low-pressure water jets, allowing installation on machinery that is cleaned with spray. Together these electrical and sealing features ensure consistent performance for automated hydraulic systems that require proportional control.
Technical Specifications
Coil Resistance (20 C)
4.8 Ω
Connection Type
Subplate Mounting
Electrical Connector
EN 175301-803 (3-pin 2+PE)
Inductance
86 mH
Max Flow
30 L/min
Max Operating Pressure
350 bar
Max Power
30 W
Mounting Interface
ISO 4401-03-02-0-05
Nominal Flow
12 L/min
Number Of Ports
4
Number Of Positions
3
Port T Max Pressure
210 bar
Protection Class
IP65
Seals
NBR
Size
6
Supply Voltage
12 V DC
1620 Old Apex Road
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