Bosch Rexroth | M-3SEW6U3X420MG125N9K4
M-3SEW6U3X/420MG125N9K4
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The M-3SEW6U3X/420MG125N9K4 poppet valve belongs to the M-SEW Poppet Valves series and is manufactured by Bosch Rexroth for hydraulic automation tasks that require reliable on-off control of pressure lines. It performs a 3/2 directional function, allowing a single inlet to switch between two outlets for actuator cycling. The assembly withstands pressures up to 420 bar and passes up to 25 l/min, matching moderate flow branches. A high-power air-gap solenoid generates the force needed to open the poppet under full pressure while drawing 30 W from a 125 V DC supply. Voltage tolerance is ±10 %, so the coil stays energized within typical plant variations, and a 100 % duty cycle permits uninterrupted holding. The coil surface may reach 120 °C without damage, supporting continuous service in warm manifolds.
Electrical termination follows the DIN EN 175301-803 type K4 connector, simplifying plug-in wiring and strain relief in field cabinets. A concealed manual override identified by the N9 code lets maintenance staff shift the valve without power for circuit testing. The housing is sealed to IP65, protecting the coil against dust ingress and water jets common near hydraulic power units. Mounting follows the ISO 4401-03-02-0-05 porting pattern, so the valve bolts directly to standardized subplates. Mineral oil is the specified hydraulic fluid, and NBR sealing elements maintain compatibility with common petroleum-based media at the defined temperature range. System filtration must achieve ISO 4406 class 20/18/15 or cleaner, limiting particulate wear on the poppet and seat surfaces and preserving switching accuracy.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Directional Function
3/2
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803 (K4)
Hydraulic Fluid
Mineral Oil
Manual Override
Concealed (N9)
Max Coil Surface Temperature
120 °C
Maximum Flow
25 l/min
Maximum Operating Pressure
420 bar
Nominal Voltage
125 V DC
Porting Pattern
ISO 4401-03-02-0-05
Power Consumption
30 W
Protection Class
IP65
Seal Material
NBR
Solenoid Type
High-Power Air-Gap
Voltage Tolerance
±10%
1620 Old Apex Road
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