Bosch Rexroth | Z4WE6X188-3XEG24K4QMBG24-SO863
Z4WE6X188-3X/EG24K4QMBG24 SO863
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The Z4WE6X188-3X/EG24K4QMBG24 SO863 belongs to the Z4WE Solenoid Actuation Spool Valves series produced by Bosch Rexroth for hydraulic automation circuits that require precise on-off flow control. The porting pattern follows ISO 4401-03-02-0-05, allowing direct mounting on common NG6 subplates. The valve withstands 315 bar on ports P, A, and B, enabling operation in high-pressure supply and work lines, while port T and Dc are limited to 210 bar to safeguard tank returns. A maximum flow of 50 l/min sets the throughput the spool can meter without excessive pressure loss. The solenoid operates on a nominal 24 V DC supply; at this voltage it draws a rated current of 1.25 A and consumes 30 W, aligning with energy budgets in mobile and industrial power units. Continuous energizing is possible because the duty cycle is 100 % ED (S1), so no cooling pauses are needed during extended shifts.
Electrical connection is provided by a DIN EN 175301-803 K4 plug, which supports fast replacement and standardized wiring. The enclosure meets IP65, offering protection against dust ingress and low-pressure water jets when the plug is correctly sealed. Hydraulic fluid cleanliness must not exceed ISO 4406 class 20/18/15, preventing spool wear and leakage. Coil surface temperature can reach 120 °C, so adjacent components must tolerate this heat during continuous duty. Inductive energy is limited to a 500 V switch-off overvoltage to protect drive electronics. A switching frequency of up to 15 000 cycles per hour allows rapid command changes in fast-acting circuits. The integrated spool position monitor designated “b” at 24 V DC supplies feedback for control diagnostics, and an MTTFd of 150 years supports long service life targets in safety-related systems.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Connector Type
DIN EN 175301-803 (K4)
Duty Cycle
100% ED (S1)
Max Coil Surface Temperature
120 °C
Max Switch-off Overvoltage
500 V
Max Switching Frequency (dc)
15000 1/h
Maximum Flow
50 l/min
Maximum Operating Pressure (p, A, B)
315 bar
Maximum Operating Pressure (t, Dc)
210 bar
Mttfd
150 years
Nominal Voltage
24 V DC
Porting Pattern
ISO 4401-03-02-0-05
Power Consumption (dc)
30 W
Protection Class (ip)
IP65
Rated Current (24 V Dc)
1.25 A
Spool Position Monitor
b (24 V DC)
1620 Old Apex Road
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