Bosch Rexroth | M-4SED6D1X350CG24N9K4P
M-4SED6D1X/350CG24N9K4/P
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The M-4SED6D1X/350CG24N9K4/P poppet valve is produced by Bosch Rexroth for the M-SED Poppet Valves series and serves as a directional element in hydraulic automation. It uses a 4/2 variant D configuration, giving two stable positions to control four flow paths. A wet-pin, detachable coil solenoid actuates the poppet, allowing coil replacement without opening the hydraulic section. The coil is energized with a nominal supply of 24 V DC, and the circuit may vary ±10% without affecting switching reliability. Electrical load on the power supply is 30 W, keeping heat generation moderate inside the control cabinet. Connection to the wiring harness is made through a DIN EN 175301-803 type K4 plug, which standardizes pin layout and sealing. An integrated check valve insert stops reverse flow when the poppet shifts, and the hydraulic envelope tolerates operating pressures up to 350 bar for use in high-pressure manifolds.
The design supports a 100% duty cycle, allowing the solenoid to remain continuously energized during long machine cycles. Thermal limits are set by a maximum coil temperature of 150 °C, which protects insulation and winding integrity. Fast response is maintained at switching rates up to 15 000 operations per hour, enabling precise flow modulation in rapid-cycle machinery. When mated with the proper connector, the enclosure achieves an IP65 protection rating, preventing dust ingress and water jets from reaching live parts. A concealed manual override labeled N9 permits local actuation without disturbing normal sealing surfaces. System fluid must meet ISO 4406 class 20/18/15 cleanliness to avoid poppet wear or sticking. For the 4/2 function the valve requires at least 3 l/min of flow and 8 bar of inlet pressure to switch reliably, parameters that guide circuit designers when sizing pumps and orifices.
Technical Specifications
Check Valve Insert
Included
Directional Function
4/2 (Variant D)
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803 (K4)
Fluid Cleanliness
ISO 4406 Class 20/18/15
Manual Override
Concealed (N9)
Max Coil Temperature
150 °C
Max Switching Frequency
15000 1/h
Maximum Operating Pressure
350 bar
Minimum Flow For 4/2 Function
3 l/min
Minimum Operating Pressure (4/2)
8 bar
Nominal Voltage
24 V DC
Power Consumption
30 W
Protection Rating
IP65 (with Mating Connector)
Solenoid Type
Wet-Pin, Detachable Coil
Voltage Tolerance
±10%
1620 Old Apex Road
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