Bosch Rexroth | Z4WE6E51-3XEG24N9K4
Z4WE6E51-3X/EG24N9K4
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The Z4WE6E51-3X/EG24N9K4 spool valve is produced by Bosch Rexroth for the Z4WE Solenoid Actuation Spool Valves series and controls directional flow in automated hydraulic circuits. It is energized at a nominal voltage of 24 V DC, drawing a rated current of 1.25 A, so cabinet power supplies can drive the coil directly. Power consumption is 30 W, which limits heat generation and simplifies thermal design. The coil works at a 100 % duty cycle, allowing continuous actuation, and its surface temperature can reach 120 °C without damage. An electrical connector to DIN EN 175301-803 standard provides simple field wiring while the IP65 enclosure rating shields the unit from dust and water jets. A concealed manual override supports service positioning without energizing the coil. Mounting is through 5.3 mm holes on the ISO 4401-03-02-0-05 porting pattern for easy manifold installation.
The hydraulic section passes a maximum flow of 50 l/min, permitting medium-capacity actuators to cycle at full speed. Pressure at ports P, A, and B can be held up to 315 bar, while the return port and drain circuit withstand 210 bar, enabling use in high-pressure systems. A switching frequency of 15 000 cycles per hour supports rapid directional changes in automated machinery. The valve requires fluid cleanliness of 20/18/15 according to ISO 4406, so filtration must be selected accordingly to prevent spool wear. Mean time to dangerous failure is 150 years, indicating low statistical risk during the service life of typical equipment. Together these performance figures define the operating envelope and reliability needed for precise, long-term hydraulic automation.
Technical Specifications
Coil Max Surface Temperature
120 °C
Duty Cycle
100% ED
Electrical Connection
DIN EN 175301-803
Fluid Cleanliness Class
20/18/15 (ISO 4406)
Manual Override
Concealed
Max Flow
50 l/min
Max Operating Pressure (p/a/b)
315 bar
Max Operating Pressure (t, Dc)
210 bar
Max Switching Frequency
15000 1/h
Mounting Hole Diameter
5.3 mm
Mttfd
150 years
Nominal Voltage
24 V DC
Porting Pattern
ISO 4401-03-02-0-05
Power Consumption
30 W
Protection Class
IP65
Rated Current (24 V Dc)
1.25 A
1620 Old Apex Road
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