Bosch Rexroth | Z4WE6E68-20AG24N9Z4
Z4WE6E68-20/AG24N9Z4
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The Z4WE6E68-20/AG24N9Z4 is an electrically operated directional spool valve in the WE Directional Spool Valves series manufactured by Bosch Rexroth. It shifts hydraulic flow paths in automated machinery by means of two solenoids. Each coil operates at a nominal voltage of 24 V DC, draws 1.25 A, and therefore consumes 30 W during energization. A duty cycle of 100 % ED allows continuous excitation, while a maximum coil surface temperature of 120 °C defines the thermal limit under sustained load. An N9 concealed manual override lets technicians move the spool mechanically for setup or emergency operation. The valve follows the NFPA T3.5.1 D03 interface and installs on subplates with the ISO 4401-03-02-0-05 mounting pattern for standardized manifold integration. With both solenoids fitted the assembly weighs 1.95 kg, so it can be mounted directly on compact hydraulic blocks.
The hydraulic section tolerates 350 bar in pressure, A, and B ports, enabling control of high-pressure actuators, while the tank port is limited to 210 bar to protect return-line components. Flow capacity reaches 80 l/min in direct-current service, supporting quick cylinder or motor reversal in industrial circuits. An IP65 enclosure rating shields the electrical components from dust ingress and low-pressure water jets, allowing installation on exposed machinery. System oil must meet cleanliness class ISO 4406 20/18/15 to maintain spool clearance and reduce wear. These parameters outline dependable performance for continuous service where reliable switching, protected electronics, and controlled contamination are required.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Max Surface Temperature
120 °C
Coil Rated Current (24 Vdc)
1.25 A
Duty Cycle
100% ED
Enclosure Rating
IP65
Interface Standard
NFPA T3.5.1 D03
Manual Override
N9 (Concealed)
Max Tank Port Pressure (dc)
210 bar
Maximum Flow (dc)
80 l/min
Maximum Operating Pressure (p, A, B)
350 bar
Mounting Pattern
ISO 4401-03-02-0-05
Nominal Power (dc)
30 W
Nominal Voltage
24 V DC
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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