Bosch Rexroth | Z4WE6E68-3XEG96NK4
Z4WE6E68-3X/EG96NK4
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The Z4WE6E68-3X/EG96NK4 spool valve is manufactured by Bosch Rexroth for the Z4WE Solenoid Actuation Spool Valves series. It directs hydraulic flow in automated circuits and is suited for machinery that needs rapid switching of pressure lines. The valve follows the ISO 4401-03-02-0-05 porting pattern so it can mount on standard sub-plates without adapter blocks. Its internal passages support a maximum operating pressure of 315 bar, and the flow path handles up to 50 l/min without exceeding rated pressure drop. An IP65 ingress protection rating shields the solenoid enclosure from dust and low-pressure water, which supports use in wash-down production cells. The hydraulic section must receive oil filtered to ISO 4406 class 20/18/15 to limit wear on the spool and seats. Because the device can be installed in any position, designers can orient manifolds for the most compact plumbing. With both solenoids attached, the assembly weighs 1.6 kg, allowing manual installation without lifting equipment.
The electrical part operates on a nominal supply of 100 V AC at either 50 or 60 Hz, drawing a rated current of 0.31 A at both frequencies. A rectifier is required because the coil is built for rectified control rather than direct AC magnetization. The coil consumes 30 W and is designed for continuous operation with a 100 percent duty cycle, so switching frequency is limited only by system response. Voltage may vary by up to ±10 percent of nominal without performance loss, and the maximum coil surface temperature is 120 °C before thermal cutback is needed. Connection is made through a DIN EN 175301-803 three-pole plug with a protective earth pin, which simplifies field wiring and ensures grounding compliance. These electrical features combine with the hydraulic ratings noted earlier to give a balanced valve for automated presses, molding machines, and general industrial hydraulic manifolds.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Surface Temperature Max
120 °C
Connector Standard
DIN EN 175301-803 (3-pole 2+PE)
Duty Cycle
100% (ED)
Ingress Protection
IP65
Installation Position
Any
Maximum Flow
50 l/min
Maximum Operating Pressure
315 bar
Nominal Voltage
100 V AC (50/60 Hz)
Porting Pattern
ISO 4401-03-02-0-05
Power Consumption
30 W
Rated Current (50 Hz)
0.31 A
Rated Current (60 Hz)
0.31 A
Rectifier Required
Yes
Voltage Tolerance
±10%
Weight (two Solenoids)
1.6 kg
1620 Old Apex Road
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