DWYER Series A9 Snap-Action Pressure Switch

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Description

Series A9 Snap-Action Pressure Switch

High Current Capacity, High Temperature Rating

Series A9 Pressure Switches are designed for controlling pressure with higher current capacity. These switches are used widely in steam cleaners, steam irons, and other pressure control systems. It provides SPDT contact and Series A9 Pressure Switches utilize high-quality miniature snap-action switches. The switch is diaphragm operated, boasting a high temperature rating and compact size.

 

Specifications

  • Service: Non-hazardous gas, liquid, or steam.
  • Wetted Materials: Connection: Copper, Diaphragm: Silicone or Stainless Steel.
  • Temperature Limits: See Ordering page.
  • Pressure Limit: See Ordering page.
  • Repeatability: ±5%.
  • Switch Type: SPDT.
  • Electrical Ratings: 21A @ 125/250 VAC.
  • Electrical Connections: 1/4″ (6.35 mm) male quick connect.
  • Process Connection: 1/8″ male NPT.
  • Weight: 2.6 oz (75 g).
  • Deadband: See Ordering page.

 

Models & Ordering

Model Description
A9-1 Pressure switch, range 2.9-8.7 psig (0.2-0.6 bar), deadband 2.9 ±1.5 psig (0.2 ±0.1 bar), max. pressure 43.5 psig (3.0 bar), temperature limit 185°F (85°C), silicone diaphragm.
A9-2 Pressure switch, range 7.3-17.4 psig (0.5-1.5 bar), deadband 2.9 ±1.5 psig (0.2 ±0.1 bar), max. pressure 58.0 psig (4.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-3 Pressure switch, range 14.5-36.3 psig (1.2-2.5 bar), deadband 2.9 ±1.5 psig (0.2 ±0.1 bar), max. pressure 72.5 psig (5.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-4 Pressure switch, range 21.8-58 psig (1.5-4.0 bar), deadband 3.6 ±2.2 psig (0.25 ±0.1 bar), max. pressure 87.0 psig (6.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-5 Pressure switch, range 29-87 psig (3.0-7.0 bar), deadband 5.1 ±2.9 psig (0.35 ±0.2 bar), max. pressure 116.0 psig (8.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.
A9-6 Pressure switch, range 58-130.5 psig (5.0-9.0 bar), deadband 8.7 ±2.9 psig (0.6 ±0.2 bar), max. pressure 145.0 psig (10.0 bar), temperature limit 257°F (125°C), stainless steel diaphragm.

 

 

 

 

 

 

 

 

Additional information

Model

A9-1, A9-2, A9-3, A9-4, A9-5, A9-6

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