Bosch Rexroth | 4WE6E6XEW110N962SO43A-1221B
4WE6E6X/EW110N9/62SO43A-1221B
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The 4WE6E6X/EW110N9/62SO43A-1221B directional spool valve is manufactured by Bosch Rexroth for the WE Directional Spool Valves series. It directs hydraulic fluid in automated systems that require precise on-off control. The body follows the ISO 4401-03-02-0-05 (NFPA D03) porting pattern, and its nominal size is 6 for compact manifold mounting. A wet-pin solenoid shifts the spool when supplied with 110 V AC at 50 or 60 Hz. The coil accepts a ±10 % voltage swing, draws 220 VA at switch-on, and falls to 50 VA during steady holding to reduce heating. The assembly can cycle up to two times per second, matching the maximum switching frequency for AC operation. When electrical power is unavailable, a concealed manual override enables local actuation without exposing moving parts.
The hydraulic envelope allows 350 bar on ports P, A, and B and 160 bar on the tank port, letting the valve work with many medium-pressure pumps and cylinders. A maximum flow of 60 l/min supports moderate actuator speeds while keeping pressure loss within acceptable limits. A clamping length of 42 mm matches standard tie-rod kits, and a locating hole designated ISO 8752-3x8-St positions the housing accurately on the subplate to preserve port alignment. The coil surface temperature is limited to 120 °C during continuous duty, a figure that prevents insulation damage and maintains consistent magnetic force over long operating periods.
Technical Specifications
Clamping Length
42 mm
Coil Surface Temperature
120 °C
Holding Power (ac)
50 VA
Locating Hole
ISO 8752-3x8-St
Manual Override
Concealed
Max Flow (ac)
60 l/min
Max Operating Pressure (p/a/b)
350 bar
Max Switching Frequency (ac)
2 1/s
Max Tank Port Pressure (t)
160 bar
Nominal Size
6
Porting Pattern
ISO 4401-03-02-0-05 (NFPA D03)
Solenoid Type
Wet-Pin
Supply Voltage
110 V AC (50/60 Hz)
Switch-on Power (ac)
220 VA
Voltage Tolerance
±10%
1620 Old Apex Road
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