Bosch Rexroth | 4WRAB6E03-1XG24N9K4MR
4WRAB6E03-1X/G24N9K4/MR
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The 4WRAB6E03-1X/G24N9K4/MR proportional directional valve is produced by Bosch Rexroth within the 4WRA Proportional Directional Valves series. It meters hydraulic flow and direction for automated power circuits. The valve is built to size 6, allowing compatibility with small to medium power manifolds. It handles a peak flow of 42 liters per minute so it can regulate actuators with moderate throughput requirements. Electrical actuation runs on a 24 V DC supply, and field wiring connects through a K4 plug that provides two power poles plus a protective earth. A concealed manual override identified by the N9 code enables local spool actuation during commissioning or power loss. The unit can be installed in any orientation without affecting performance, and the mounting face follows the ISO 4401-03-02-0-05 pattern for manifold interchangeability. Hydraulic ports seal against a subplate interface, making subplate mounting the intended connection method.
Working pressure ratings reach 350 bar on ports A, B, and P while port T is limited to 210 bar, allowing safe return-line operation alongside high-pressure supply lines. Fluid can be handled down to −20 °C and up to 70 °C, and the housing may reach a surface temperature of 150 °C during continuous duty. Acceptable oil cleanliness corresponds to ISO 4406 class 20/18/15, which protects the servomechanism from abrasive wear. An IP65 enclosure prevents dust ingress and withstands low-pressure water jets when the connector is engaged. The assembled mass is 2.0 kg, supporting single-person handling during maintenance. These characteristics allow the valve to deliver proportional control accuracy within hydraulic automation environments that operate under demanding temperature, pressure, and contamination limits.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Connector Type
K4 (2-pole + PE)
Installation Position
Any
Manual Override
Concealed (N9)
Max Fluid Temperature
+70 °C
Max Pressure (port T)
210 bar
Max Pressure (ports A,b,p)
350 bar
Maximum Flow
42 l/min
Maximum Surface Temperature
150 °C
Min Fluid Temperature
–20 °C
Porting Pattern
ISO 4401-03-02-0-05
Protection Class
IP65
Size
6
Supply Voltage
24 VDC
Type Of Connection
Subplate Mounting
Weight
2.0 kg
1620 Old Apex Road
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