Bosch Rexroth | 4WE6D6XEG125N4K4
4WE6D6X/EG125N4K4
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The 4WE6D6X/EG125N4K4 directional spool valve belongs to the WE Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation circuits. It directs fluid paths within ISO 4401-03-02-0-05 port layouts, allowing quick replacement in standardized manifolds. The unit handles up to 350 bar of operating pressure so it can be installed in high-pressure supply lines without external pressure reducers. A maximum flow capacity of 80 l/min supports medium-sized actuators with minimal pressure drop. System oil must meet cleanliness class ISO 4406 20/18/15 to prevent spool wear and sticking. Actuation is provided by a high-power wet-pin solenoid with a detachable coil, which simplifies coil exchange while keeping the armature immersed for cooling. The coil operates at 125 V DC and accepts a ±10 % voltage variation, giving tolerance for supply fluctuations. During energization it draws 0.17 A, a figure that guides fuse and power supply selection.
The coil consumes 30 W at nominal load, so cabinet thermal calculations must dissipate this heat. A 100 % ED duty cycle allows continuous energization without overheating when mounted in an ambient that matches insulation class F limits. A lockable small mushroom manual override is provided, enabling the technician to shift the spool mechanically during commissioning or power loss. The electronics withstand switch-off transients up to 500 V, protecting driver circuits from inductive peaks. Tank return pressure may reach 210 bar without impairing function, which broadens installation options in back-pressure systems. An IP65 protection rating shields the solenoid enclosure against dust and water jets, permitting outdoor or wash-down mounting when the connector is sealed. The assembly with two solenoids weighs 1.95 kg, light enough for direct manifold installation without additional supports.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Rated Current (125 V Dc)
0.17 A
Coil Voltage
125 V DC
Duty Cycle
100% ED
Insulation Class (dc)
F
Manual Override
Lockable Mushroom (Small)
Max Switch-off Overvoltage
500 V
Maximum Flow (dc)
80 l/min
Maximum Operating Pressure
350 bar
Maximum Tank Port Pressure (dc)
210 bar
Nominal Power (dc)
30 W
Porting Pattern
ISO 4401-03-02-0-05
Protection Class (ip)
IP65
Solenoid Type
High-Power Wet-Pin, Detachable Coil
Voltage Tolerance
±10%
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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