Bosch Rexroth | 4WE6J6XEG12N9K40B10SO43A-1799A
4WE6J6X/EG12N9K40/B10SO43A-1799A
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The 4WE6J6X/EG12N9K40/B10SO43A-1799A directional spool valve is produced by Bosch Rexroth for the WE Directional Spool Valves series and routes pressure fluid to hydraulic actuators in automated systems. The solenoid operates with a nominal voltage of 12 V DC and draws a rated current of 2.5 A, while the coil consumes 30 W during steady energization. A 100 % S1 duty cycle allows the valve to remain powered continuously without enforced cooling pauses. Voltage can vary by ±10 % from nominal and the unit will still switch correctly. Termination is through a Deutsch DT04-2PA connector identified as K40, offering a sealed electrical interface for field wiring. Protection class III (VDE 0580) confirms extra-low-voltage operation, and an IP69K enclosure prevents dust ingress and resists high-pressure water jets. A concealed manual override coded N9 is provided so technicians can shift the spool mechanically when power is unavailable.
Maximum flow is 80 l/min under direct current operation, supporting medium-capacity cylinders and motors. Ports p, a, and b tolerate up to 350 bar, while the tank port withstands 210 bar, accommodating high system pressures and return surges. The coil surface may reach 120 °C, so adjacent components must be selected for thermal compatibility. NBR seals are fitted to resist common mineral oils and maintain low leakage over the service life. A throttle insert with a 1.0 mm orifice in port B, labeled B10, moderates flow to downstream devices and reduces hydraulic shock during directional changes. These hydraulic limits, thermal ratings, and material selections establish dependable performance for continuous industrial and mobile duty.
Technical Specifications
Duty Cycle
100% (S1)
Electrical Connection
Deutsch DT04-2PA (K40)
Ingress Protection
IP69K
Manual Override
Concealed (N9)
Max Coil Surface Temperature
120 °C
Max Flow (dc)
80 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Tank Port Pressure (t)
210 bar
Nominal Power (coil)
30 W
Nominal Voltage
12 V DC
Protection Class (vde 0580)
III
Rated Current (12 V)
2.5 A
Seal Material
NBR
Throttle Insert
Port B Dia 1.0 mm (B10)
Voltage Tolerance
±10%
1620 Old Apex Road
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