Bosch Rexroth | 4WE6E73-6XEG12N9DALA12-CSA
4WE6E73-6X/EG12N9DAL/A12 CSA
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The 4WE6E73-6X/EG12N9DAL/A12 CSA valve is manufactured by Bosch Rexroth for the WE Directional Spool Valves series and is used to direct hydraulic flow in automated machinery. The solenoid operates on a nominal voltage of 12 V DC and draws a rated current of 2.5 A, so a 30 W power input is sufficient to shift the spool under load. A ±10 % voltage tolerance keeps the coil within safe limits when supply levels fluctuate. Continuous energization is permitted because the duty cycle is 100 % (S1), supporting stable motion sequences in servo-hydraulic loops. When electrical control is unavailable, a concealed manual override (N9) lets maintenance staff shift the element without removing covers. The housing provides a 1/2″-14 NPT thread for the electrical connector, and the sub-plate interface follows the ISO 4401-03-02-0-05 porting pattern to match common CETOP 3 manifolds.
Hydraulic circuit ratings include a maximum operating pressure of 350 bar at ports P, A, and B and 210 bar at the tank port, allowing the valve to function in high-pressure power units. Direct current operation supports flows up to 80 l/min, while a switching frequency of 4.2 cycles per second enables rapid directional changes in proportional logic stages. An enclosure rating of IP65 prevents dust ingress and water jets from affecting the coil, and the assembly satisfies cleanliness class ISO 4406 20/18/15 to reduce wear in precision actuators. Coil insulation tolerates a surface temperature of 120 °C during continuous service, and the calculated mean time to dangerous failure (MTTFd) of 300 years indicates a very low probability of systematic faults over the valve’s service life.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Connector Thread
1/2"-14 NPT
Duty Cycle
100% (S1)
Enclosure Rating
IP65
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 Switching Frequency (dc)
4.2 1/s
Max Tank Port Pressure (dc)
210 bar
Mttfd
300 years
Nominal Power (dc)
30 W
Nominal Voltage
12 V DC
Porting Pattern
ISO 4401-03-02-0-05
Rated Current (12 V Dc)
2.5 A
Voltage Tolerance
±10%
1620 Old Apex Road
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