Bosch Rexroth | 4WRAB6E12-1XG12N9DK25MR
4WRAB6E12-1X/G12N9DK25/MR
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The 4WRAB6E12-1X/G12N9DK25/MR proportional directional valve belongs to the 4WRA Proportional Directional Valves series and is manufactured by Bosch Rexroth. It controls the direction and magnitude of hydraulic flow in automated machinery. A nominal size of 6 defines the port geometry and supports compact manifold layouts, while the ISO 4401-03 (NFPA D03) mounting interface allows direct installation on standard subplates. The E spool symbol identifies the internal flow paths used for actuator control. A 12 VDC supply voltage enables operation from mobile or low-voltage control systems. The solenoid winding presents 4.8 Ω at 20 °C, establishing the steady-state current, and its 86 mH inductance moderates current transients for smoother spool shifts. Continuous coil power is limited to 30 W to manage thermal rise, and a 5-pin DK25 connector offers keyed electrical engagement without exposed terminals.
The valve achieves a −3 dB frequency response of 24 Hz, which supports proportional positioning tasks that require timely flow adjustments. Under a 10 bar pressure drop it delivers a nominal flow of 12 L/min, and it can reach 30 L/min when circuits demand higher throughput. Maximum operating pressure is 350 bar, permitting use in high-pressure lines, while the tank port can withstand up to 210 bar to accommodate elevated return pressures. An IP65 protection class shields the solenoid against dust and water jets, and NBR sealing material maintains fluid integrity with common hydraulic oils. A covered manual override, coded N9, permits local spool movement during commissioning yet prevents inadvertent activation during service.
Technical Specifications
Coil Inductance
86 mH
Coil Power
30 W
Coil Resistance
4.8 Ω (20°C)
Electrical Connector
5-Pin (DK25)
Frequency Response (-3 Db)
24 Hz
Manual Override
Covered (N9)
Max Flow
30 L/min
Max Operating Pressure
350 bar
Max Tank Port Pressure
210 bar
Mounting Interface
ISO 4401-03 (NFPA D03)
Nominal Flow
12 L/min (10 bar Δp)
Nominal Size
6
Protection Class
IP65
Seal Material
NBR (MR)
Spool Symbol
E
Supply Voltage
12 VDC
1620 Old Apex Road
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