Bosch Rexroth | 4WE6U10B6XEW110N9K4
4WE6U10B6X/EW110N9K4
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The 4WE6U10B6X/EW110N9K4 directional spool valve belongs to the WE Directional Spool Valves series and is manufactured by Bosch Rexroth for hydraulic automation circuits. It controls the start, stop, and direction of oil flow by shifting a solenoid-actuated spool. The valve is supplied in size 6 which matches subplate channels commonly used in compact power units. Its ISO 4401-03-02-0-05 mounting pattern, also known as NFPA D03, allows direct installation on standard subplates without additional adapters. Electrical connection is made through a DIN EN 175301-803 plug coded K4, enabling quick coil replacement and consistent pin assignment. The coil operates on a nominal 110 V AC supply at either 50 or 60 Hz; current draw is 0.52 A at 50 Hz and 0.39 A at 60 Hz, so panel designers can size conductors and fuses accordingly. An insulation class H winding withstands higher temperature rise than lower classes, extending service life under continuous duty.
The hydraulic section tolerates 350 bar on pressure ports a, b, and p, allowing it to handle high-pressure pump lines, while tank ports t and Ac are limited to 160 bar to protect return circuits. A maximum flow of 60 l/min defines the throughput the spool can pass without excessive pressure drop. The housing meets IP65, so dust tightness and water jet resistance are adequate for most machine frames. A concealed manual override lets maintenance staff shift the spool during commissioning without energizing the coil, and unrestricted installation position means the valve can be mounted horizontally or vertically. The U spool symbol indicates the specific crossover flow paths available in each energized state. A mounting face surface roughness of Rzmax 4 promotes reliable seal compression against the subplate. An MTTFd value of 300 years supports safety calculations in performance level designs.
Technical Specifications
Electrical Connector
DIN EN 175301-803 (K4)
Installation Position
Any
Insulation Class (ac)
H
Manual Override
Concealed
Max Operating Pressure (a,b,p)
350 bar
Max Tank Pressure (t, Ac)
160 bar
Maximum Flow (ac)
60 l/min
Mounting Pattern
ISO 4401-03-02-0-05 (NFPA D03)
Mttfd
300 years
Nominal Voltage
110 V AC (50/60 Hz)
Protection Class
IP65
Rated Current (50 Hz)
0.52 A
Rated Current (60 Hz)
0.39 A
Spool Symbol
U
Surface Roughness (mounting Face)
Rzmax 4
Valve Size
6
1620 Old Apex Road
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