The Ashcroft® A-Series miniature pressure switches are designed for tough applications where conventional designs often don't measure up. A rugged 316 SS enclosure gives uncompromising protection. Materials of construction have been selected for long life. Precision snap acting micro switches are featured and fully encased to prevent moisture from corroding switch contacts. The switch, depending on range, is either an all welded 316 stainless steel diaphragm sealed piston design or a direct acting piston design sealed with a Buna-N or Viton O-ring. Ideal for pressure alarm, shutdown, or control in hazardous areas and wherever size is a consideration or equipment is being downsized.
Specifications
Setpoint: Factory set or field adjustable Setpoint repeatability: ±2% of range (Additional setpoint shift of ±2% of range per 40°F from initial setpoint set at 70°F typical) Vibration: Passed MIL-STD-202G Shock: 75G’s 10 milliseconds 3 axis Piston: Stainless steel with Viton or Buna-N O-ring Mechanical life piston design: >1,000,000 operations typical Diaphragm: 316L SS Mechanical life diaphragm design: >400,000 operations typical Enclosure material: 316L SS Enclosure rating: NEMA 4X, 7, 9, IP 67 Pressure connection: 1⁄8 NPTF, 1⁄4 NPTF, 1⁄4 NPTM, 1⁄8 NPTM, 7/16-20 SAE M, VCR, VCO, 3⁄4 Tri-Clamp®, 1.5 Tri-Clover®, 2.0 Tri-Clover® , G1⁄4 B, G1⁄4 A Type E Stub end Electrical output: SPDT, or DPDT 5A or 3A 120Vac, 2A @ 30 Vdc, 5A @ 28 Vac, gold contacts available Electrical termination: 18 AWG wire leads, with 1⁄2 NPT conduit connection.
Dimensions
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