Bosch Rexroth | 4WE6J6XEG12N9K4SO43A-1820C
4WE6J6X/EG12N9K4SO43A-1820C
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The 4WE6J6X/EG12N9K4SO43A-1820C directional spool valve is produced by Bosch Rexroth for the WE Directional Spool Valves series, where it directs or stops hydraulic flow in automated power units. It tolerates working pressures up to 350 bar on ports P, A, and B, allowing it to serve high-pressure actuators. A maximum flow of 80 l/min keeps velocity losses low in medium-capacity circuits. The sub-plate interface follows mounting pattern ISO 4401-03-02-0-05, and the same footprint matches NFPA D03 blocks for North American layouts. Wiring is handled through a DIN EN 175301-803 K4 connector, which supports quick coil replacement. The solenoid operates on 12 V DC, draws 2.5 A, and consumes 30 W during energization, giving predictable load calculations for control panels. An IP65 housing resists dust ingress and low-pressure water jets so the valve can be mounted near machinery without extra enclosures.
The design supports a 100 % duty cycle (S1), meaning continuous energization will not shorten service life. Its DC coil meets insulation class F, permitting sustained heat build-up without degrading winding varnish. A concealed manual override identified as N9 lets technicians shift the spool during commissioning or power loss while staying recessed to avoid accidental actuation. This override remains functional as long as tank pressure does not exceed 50 bar. The tank port itself can withstand up to 210 bar, enabling circuits with elevated back-pressure filtration. Under extended energization the coil surface may reach 120 °C, so adjacent components must tolerate this temperature. Hydraulic oil feeding the valve must achieve cleanliness class 20/18/15 (ISO 4406) to prevent contamination-induced sticking and to preserve metering accuracy.
Technical Specifications
Cleanliness Class (iso 4406)
20/18/15
Duty Cycle
100% (S1)
Electrical Connector
DIN EN 175301-803 (K4)
Insulation Class (dc Coil)
F
Manual Override
Concealed (N9)
Manual Override Max Tank Pressure
50 bar
Max Flow (dc)
80 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Surface Temperature (coil)
120 °C
Max Tank Port Pressure (t, Dc)
210 bar
Mounting Pattern
ISO 4401-03-02-0-05
Nfpa Mounting Pattern
D03
Nominal Power (dc)
30 W
Nominal Voltage
12 V DC
Protection Class (ip)
IP65
Rated Current (12 V)
2.5 A
1620 Old Apex Road
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