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Ashcroft
Ashcroft A-Series Compact Pressure Switches
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A-Series: −15 to 15,000 psi class; mech contacts; ±2%/±5% repeat. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Vacuum −15 to 15,000 psi (watertight and explosion-proof A-Series families)
Accuracy
Setpoint repeatability ±2% of span (200–15,000 psi); ±5% of span (−15/15 through 100 psi); additional ±2%/40 °F from 70 °F set typical
Output
SPDT or DPDT snap-acting micro switch; 5 A or 3 A @ 120 Vac; 2 A @ 30 Vdc; gold contacts optional
Process connection
1/8–1/2 NPT F/M, SAE, VCR/VCO compatible, Tri-Clamp/Tri-Clover, G¼ options
Electrical connection
Wire leads with 1/2 NPT or M20×1.5 conduit; multiple connector options on watertight
Wetted parts
316L SS diaphragm or SS piston with Viton or Buna-N O-ring
Fits compact OEM and panel pressure switching where you need an Ashcroft A-Series switch—ranges from vacuum (−15 psi class) through about 15,000 psi with mechanical switch contacts and span-based setpoint repeatability.
Key advantages
- Ranges — Vacuum −15 to ~15,000 psi class
- Output — Mechanical switch contacts
- Repeatability — ±2% of span (200–15,000 psi); ±5% on lower ranges class
- Form — Compact A-Series platform
- Use — OEM alarm / control switching
Typical applications
- OEM equipment pressure trips.
- Compact panel switches.
- High-pressure hydraulic cutouts.
Selection guide
- Range
- Electrical rating
- Process connection
Common mistakes
- Expecting ±1% L/G-Series repeatability on A-Series.
- Wrong range for set-point.
- Exceeding electrical load rating.
When to RFQ / what to tell us
- Range, connection.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 37156 |
| Brand | Ashcroft |
| Model | A Series Pressure Switches |
| Product type | Pressure Switch |
| Type | Compact pressure switch (Ashcroft A-Series) |
| Range | Vacuum −15 to 15,000 psi class |
| Output | Mechanical switch contacts |
| Repeatability | ±2% of span (200–15,000 psi); ±5% on lower ranges class |
Documents
FAQ
Q: Max pressure class? A: About 15,000 psi on high ranges.
Q: Repeatability? A: ±2% of span on 200–15,000 psi ranges; ±5% on lower bands class.
Q: What should I send for a quote? A: Range/connection, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Vacuum −15 to 15,000 psi (watertight and explosion-proof A-Series families) |
| Accuracy | Setpoint repeatability ±2% of span (200–15,000 psi); ±5% of span (−15/15 through 100 psi); additional ±2%/40 °F from 70 °F set typical |
| Output | SPDT or DPDT snap-acting micro switch; 5 A or 3 A @ 120 Vac; 2 A @ 30 Vdc; gold contacts optional |
| Process connection | 1/8–1/2 NPT F/M, SAE, VCR/VCO compatible, Tri-Clamp/Tri-Clover, G¼ options |
| Electrical connection | Wire leads with 1/2 NPT or M20×1.5 conduit; multiple connector options on watertight |
| Wetted parts | 316L SS diaphragm or SS piston with Viton or Buna-N O-ring |
| Protection | Watertight APA/APS: NEMA 6, IP67; Explosion-proof: NEMA 4X/7/9, IP67 |
| Ambient temperature | Watertight −40 to 212 °F (−40 to 100 °C); XP −40 to 192 °F (−40 to 89 °C) T5 class |
| Approvals | UL; CSA; CE; CRN; SIL 3 capable; RoHS; NSF-61; FM; ATEX; IECEx; Dual Seal (XP) |
| Setpoint | Single setpoint; factory-set or field adjustable; fixed deadband |
| Enclosure Material | 316L stainless steel |
| Process Temperature | Same as ambient limits for selected actuator/seal combination |
| Deadband | Fixed (see range tables for approximate deadband by range code) |
| Special Features | Compact miniature 316L construction; SIL 3 capable; XP dual-seal process sealing |