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H-Series Miniature Pressure Switch
Brand: ASCOH-Series miniature pressure switches have field adjustable set points and fixed deadband, with diaphragm/piston sensor.
They are available in open frame construction, Type 1 general-purpose or Type 4 watertight enclosures.
The resilient diaphragm/piston construction helps provide long life and maintains set point repeatability despite environmental temperature variations.
The full size electical switch is a precision UL listed, snap-action type. H-Series switches are CSA approved and are UL listed under “Industrial Control Equipment”.
Features- Field adjustable set points.
- Fixed deadband.
- Choice of open frame type, general purpose or watetight enclosure.
- Small size.
- Mounts in any position.
- Rugged and vibration resistant, e.g., for compressors.
- Visual adjustment scales in psig and bars
Specifications
Brand
Adjustment Type
- Field Adjustable
Ambient Temperature Range
- -20° to 60° C (-4° to 140° F)
Approvals & Certifications
- CSA
- UL
Deadband, Approximate
- bar: 0.10 to 1.38
- kPa: 10.3 to 137.9
- psig: 1.5 to 20
Diaphragm Material
- Buna-N
- Ethylene Propylene (EPR)
- Fluorosilicone
- Neoprene
- Viton
Electrical Connectors
- 1/2” NPT
- Terminal Strip - Internal
Electrical Contacts
- Gold
- Silver
Electrical Rating
- 1/2 A at 125 Vdc
- 1/4 A at 250 Vdc
- 1/4 hp at 250 Vac
- 1/8 hp at 125 Vac
- 10 A at 250 Vac
- 15 A at 125 Vac
NPT Connection
- 1/4” NPT Female
- 1/4” NPT Male
- 1/8” NPT Female
- 1/8” NPT Male
Process Connection Material
- 316 Stainless Steel
- Brass
- Carbon Steel
Process Temperature
- -20° to 82° C (-4° to 180° F)
Proof Pressure
- bar: 17.24
- kPa: 1,724
- psig: 250
Set Point - Decreasing
- bar: 0.27 to 13.78
- kPa: 27.57 to 1,378
- psig: 4 to 200
Set Point - Increasing
- bar: 0.27 to 13.78
- kPa: 27.57 to 1,378
- psig: 4 to 200
Switch Type
- SPDT
System Pressure
- bar: 0.27 to 17.24
- kPa: 27.57 to 1,724
- psig: 4 to 250
Wetted Materials
- 316 Stainless Steel
- Brass
- Carbon Steel
