SUCO

Suco 0H86/0H87 Hydrogen Pressure Switch

Diaphragm (0H86) / Piston (0H87) Switch

The SUCO 0H86 (diaphragm type) and 0H87 (piston type) are SPDT changeover mechanical pressure switches designed specifically for hydrogen applications. Built with a 316L stainless steel hex‑27 housing and EPDM diaphragm (0H86) or piston mechanism (0H87), they operate up to 250 VAC/DC. Their adjustable pressure ranges start from 0.5 bar and extend up to 200 bar, and they offer exceptional overpressure safety, up to 700 bar in select variants, for added protection against transients. These models include factory-set hysteresis and utilise reliable silver contacts, ensuring stable, long-term switching performance in critical environments.
These hydrogen-compatible switches are ideal for high-pressure gas systems, fuel cell installations, and industrial hydrogen storage or dispensing stations. Their hydrogen-ready design enables safe pressure monitoring and automatic control while maintaining integrity in potentially explosive atmospheres. The choice between diaphragm and piston sensing allows adaptability depending on media cleanliness and pressure ranges, making them suitable for applications in mobility (e.g., hydrogen refuelling vehicles), petrochemical, or hydrogen generation setups. With robust construction, excellent overpressure resilience, and hydrogen certification, the 0H86/0H87 series provides a reliable, precise, and safe solution for industrial hydrogen pressure control systems.

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  • Suitable for hydrogen applications
  • Up to 250V
  • Adjustment ranges up to 200 bar
  • Up to 700 bar overpressure safety
  • Changeover (SPDT)

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Available in several variants

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Technical data

Adjustment range max 5 bar
Adjustment range min 0.5 bar
Approvals RoHS 3, CE
Deviation max ±0.3
Electrical connection Spade (AMP 6,3x0,8 mm)
Function Changeover (SPDT)
Material membrane EPDM
Material of body Stainless steel 316L
Pressure max 400 bar
Process connection G1/4-E
Voltage max 250 V

Measurements and connections

Product description

The SUCO 0H86 (diaphragm type) and 0H87 (piston type) are SPDT changeover mechanical pressure switches designed specifically for hydrogen applications. Built with a 316L stainless steel hex‑27 housing and EPDM diaphragm (0H86) or piston mechanism (0H87), they operate up to 250 VAC/DC. Their adjustable pressure ranges start from 0.5 bar and extend up to 200 bar, and they offer exceptional overpressure safety, up to 700 bar in select variants, for added protection against transients. These models include factory-set hysteresis and utilise reliable silver contacts, ensuring stable, long-term switching performance in critical environments.
These hydrogen-compatible switches are ideal for high-pressure gas systems, fuel cell installations, and industrial hydrogen storage or dispensing stations. Their hydrogen-ready design enables safe pressure monitoring and automatic control while maintaining integrity in potentially explosive atmospheres. The choice between diaphragm and piston sensing allows adaptability depending on media cleanliness and pressure ranges, making them suitable for applications in mobility (e.g., hydrogen refuelling vehicles), petrochemical, or hydrogen generation setups. With robust construction, excellent overpressure resilience, and hydrogen certification, the 0H86/0H87 series provides a reliable, precise, and safe solution for industrial hydrogen pressure control systems.

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Related

Parts Adjustment range max Adjustment range min Deviation max Pressure max Price
5 bar
0.5 bar
±0.3
400 bar
10 bar
1 bar
±0.5
400 bar
50 bar
10 bar
±3.0
400 bar
100 bar
10 bar
±3.0-5.0
400 bar
200 bar
50 bar
±0.5
700 bar

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