Bosch Rexroth | 4WE6H6XEG12N9K4V62SO43A-1661
4WE6H6X/EG12N9K4/V/62SO43A-1661
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The 4WE6H6X/EG12N9K4/V/62SO43A-1661 valve is produced by Bosch Rexroth within the WE Directional Spool Valves series. It directs hydraulic flow to actuators in automated machinery and is intended for continuous energization, evidenced by a 100 % duty cycle that prevents thermal shutdown during long sequences. The solenoid is rated for a nominal voltage of 12 V DC, draws a steady 2.5 A, and consumes 30 W, so power supply sizing is straightforward. Electrical termination is made through a DIN EN 175301-803 K4 connector, and when mated the assembly carries an IP65 rating, protecting the coil against dust and low-pressure water jets in factory environments. The coil surface may reach 120 °C under maximum load; correct wiring insulation and spacing must therefore be observed. A concealed manual override identified by code N9 lets maintenance staff shift the spool mechanically without removing the connector, enabling circuit testing during commissioning.
For hydraulic parameters, the valve handles a maximum flow of 80 l/min without exceeding its internal pressure drop. Ports A, B, and P can be pressurized up to 350 bar, while the tank port T is limited to 210 bar, which must be considered when selecting return line components. The spool can switch up to 4.2 cycles per second in direct-current operation; this frequency supports fast yet controlled response in repetitive machinery strokes. Installation follows the ISO 4401-03-02-0-05 mounting interface and matches the NFPA T3.5.1 D03 manifold pattern, allowing direct replacement of common size 6 plates. Hydraulic cleanliness must be maintained at ISO 4406 class 20/18/15 or better to avoid premature wear of the precision-ground lands. An FKM seal set resists high temperature and aggressive fluids, extending service life under demanding oil formulations.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Duty Cycle
100%
Electrical Connector
DIN EN 175301-803 (K4)
Ip Rating (k4 Connector)
IP65
Manifold Pattern
NFPA T3.5.1 D03
Manual Override
Concealed (N9)
Max Coil Surface Temperature
120 °C
Max Flow (dc)
80 l/min
Max Operating Pressure (a/b/p)
350 bar
Max Switching Frequency (dc)
4.2 1/s
Max Tank Port Pressure (dc)
210 bar
Mounting Interface
ISO 4401-03-02-0-05
Nominal Power (dc)
30 W
Nominal Voltage
12 V DC
Rated Current (12 V Dc)
2.5 A
Seal Material
FKM
1620 Old Apex Road
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