A-Series Miniature Explosion-Proof Pressure Switch

Brand: Ashcroft Inc
Does not ship to Virginia, United States

The APS and APA pressure switch have NEMA 6, IP 67 Rated 316 stainless steel housing and process connections.

The APS has a factory fixed setpoint which cannot be changed in the field.

The APA is field adjustable and can easily be adjusted by following the instructions in the diaphragm above.
Features
  • Compact size 
  • 316 stainless steel construction 
  • Pressure ranges from vacuum to psi 15,000 (kPa: 103,400, bar: 1,034) 
  • Field adjustable setpoint or factory set only 
  • Wide operating temperature range -40° to 89° C (-40° to 192.2° F) maximum 
  • Hermetically sealed micro-switch 
  • Precision snap-acting micro switch element 
  • SPDT or DPDT switching 
  • CSA listed 
  • UL listed 
  • FM approved 
  • ATEX & IECEx 
  • SIL 3 capable 
  • CRN 
  • Dual seal rated 
  • CE and ROHS compliant 

Specifications

Approvals & Certifications

  • SIL 3
  • Positive Material Identification
  • 13-ATEX-1123X
  • CE
  • CRN: 14836.5C
  • CSA (C,US): 2454057 (LR55528)
  • FM
  • IEC
  • RoHS
  • SIRA
  • UL: E34743

Switch Type

  • DPDT
  • Micro Switch
  • SPDT

Electrical Rating

  • 3 A at 120 Vac
  • 5 A at 120 Vac
  • General-purpose: 2 A at 30 Vdc
  • General-purpose: 3 A at 125 Vac
  • Gold Contact: 0.1 A at 125 Vac
  • Gold Contact: 0.1 A at 30 Vdc
  • Higher Current Gold Contacts: 0.5 A at 28 Vdc Inductive
  • Higher Current Gold Contacts: 1 A at 125 Vac
  • Higher Current Gold Contacts: 1 A at 28 Vdc Resistive
  • Higher Current: 3 A at 28 Vdc Inductive
  • Higher Current: 5 A at 125 Vac
  • Higher Current: 5 A at 250 Vac
  • Higher Current: 5 A at 28 Vac/dc Resistive

SAE Connection

  • 7/16”-20 SAE Female
  • 7/16”-20 SAE Male
  • 9/16”-18 SAE Female

Piston O-Ring

  • Buna-N

NPT Connection

  • 1/2” NPT Female
  • 1/2” NPT Male
  • 1/4” NPT Female
  • 1/4” NPT Male
  • 1/8” NPT Female
  • 1/8” NPT Male

Vibration

  • Passed MIL-STD-202 G

Enclosure, Body Material

  • 316 Stainless Steel
  • 316L Stainless Steel

Name Plate, Tag Material

  • Stainless Steel

System Pressure

  • bar: -1.034 to 103.4
  • kPa: -103.4 to 103,400
  • psi: -15 to 15,000

Environmental Protection

  • Explosion-proof
  • IP66
  • IP67
  • NEMA 4X
  • NEMA 7
  • NEMA 9

Adjustment Type

  • Set Point Adjustment

Set Point - Increasing

  • bar: -1.034 to 1,034
  • kPa: -103.4 to 103,400
  • psi: -15 to 15,000

Shock

  • 75 G, 10 milliseconds 3 Axis

Accuracy

  • 2 % of Nominal Range

O-Ring Material

  • Buna
  • HNBR
  • Viton

Electrical Contacts

  • Normally Closed
  • Normally Open

Operating Temperature

  • -40° to 100° C (-40° to 212° F)

Diaphragm Material

  • 316L Stainless Steel

Set Point - Decreasing

  • bar: -1.034 to 1,034
  • kPa: -103.4 to 103,400
  • psi: -15 to 15,000

Pressure Type

  • Gauge
  • Vacuum

Tri-Clamp Connection

  • 0.75” Tri-Clamp (Includes 3A Approval)
  • 1-1/2” Tri-Clover (Includes 3A Approval)
  • 2” Tri-Clover (Includes 3-A Approval)

Piston Material

  • 316 Stainless Steel
  • Stainless Steel with Viton

BSP Connection

  • G 1/4” Female
  • G 1/4” Male

Electrical Connectors

  • 1/2” NPT Male Conduit Connection with 18 AWG Wires
  • M20 x 1.5 Male Conduit Connection

Repeatability

  • ± 2 % of Range

  • Industrial Market: Pumps, Turbines & Compressors
  • Industrial Market: Specialized OEM Equipment
  • Offshore Oil Rigs
  • Chemical & Petrochemical
  • Gas Transmission & Distribution Systems
  • Oil & Gas Production Sites
  • Oil Pipelines
  • Refineries
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