525197

Name: Festo 525197 Solenoid valve MHA4-MS1H-3/2O-4-K
Brand: Festo

Solenoid valve MHA4-MS1H-3/2O-4-K

The Festo 525197 is an electrical 3/2 open monostable industrial component featuring a pressure-relieved poppet valve design structure with a 4 mm nominal size and 18 mm width. It delivers a standard nominal flow rate of 400 l/min across a working pressure range of -0.9 to 8 bar, utilizing direct piloting, a soft sealing principle, and a mechanical spring reset. Additional attributes include IP65 protection, c UL us recognition, a 210 Hz maximum switching frequency, 3.5 ms off switching time, throttleable exhaust-air function, and pushing manual override. Submit the exact part number, quantity, and application requirements to receive a formal quote.

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Manufacturer: Festo
Part number: 525197
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Technical Specifications

Valve function: 3/2 open, monostable
Type of actuation: electrical
Width: 18 mm
Standard nominal flow rate: 400 l/min
Working pressure: -0.9 ... 8 bar
Design structure: Pressure-relieved poppet valve
Type of reset: mechanical spring
Protection class: IP65
Authorization: c UL us - Recognized (OL)
Nominal size: 4 mm
Grid dimension: 24 mm
Exhaust-air function: throttleable
Sealing principle: soft
Assembly position: Any
Manual override: Pushing
Type of piloting: direct
Flow direction: reversible with restrictions
Working pressure, reversible: -0.9 ... 0 bar
Maximum switching frequency: 210 Hz
Switching time off: 3.5 ms
Switching time on: 3.5 ms
Tolerance for Switching time OFF: +10%/-40%
Tolerance for Switching time ON: +10%/-30%
Measuring of the switching time at 1 Hz and above: 0.3 ms
Duty cycle: 100%
Characteristic coil data: 24 V DC: low current phase: 2.125 W, high current phase: 8.5 W
Permissible voltage fluctuation: +/- 10 %
Operating medium: Filtered, unlubricated compressed air, 40 µm filtration | Filtered, lubricated compressed air, 40 µm filtration
CE symbol (see declaration of conformity): according to EU-EMV guideline
Corrosion resistance classification CRC: 2
Medium temperature: -5 ... 40 °C
Ambient temperature: -5 ... 40 °C
Product weight: 270 g
Electrical connection: Cable
Cable length: 2.5 m
Mounting type: On PR manifold
Pneumatic connection, 11: Subbase
Pneumatic connection, port: 2 Subbase
Pneumatic connection, 33: Subbase
Materials note: Free of copper and PTFE
Materials information for seals: HNBR | NBR
Materials information, housing: Zinc die-casting | coated
Materials information, cable sheaths: PUR
Screw material data: Steel | Galvanized

Engineering context

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Our sourcing response is prepared against Festo 525197. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.