Atmosphere Pressure Switch

The APS Model Air Pressure Sensing Switch is designed for precise air pressure monitoring with a fixed set point. It is ideal for applications requiring reliable and accurate pressure sensing.

Key Features:

• Mounting Position: Mount with the diaphragm in any vertical plane to achieve the specified operating set point.
• Setpoint: Fixed to operate on pressure rise at 0.05±0.02” w.c. (1.27±0.508 mm).
• Switching Differential: Approximately 0.02±0.01” w.c. (0.508±0.254 mm w.c.).
• Measured Media: Suitable for air or combustion byproducts that do not degrade silicone.
• Maximum Pressure: 1/2 psi (0.03 bar).
• Operating Temperature Range: -40°F to 180°F (-40.0°C to 82.2°C).
• Life: Minimum of 100,000 cycles at 1/2 psi maximum pressure per cycle and at maximum rated electrical load.
• Electrical Rating: 300 VA pilot duty at 155 to 277 VAC, 15 amps noninductive to 277 VAC, 60 Hz.
• Contact Arrangement: SPST-NO.
• Electrical Connections: Screw-type terminals.
• Sample Line Connector: Barbed 1/8” - 1/4” slip-on connector accepts flexible tubing.
• Shipping Weight: 1.2 lbs.
• Approvals: UL, CSA.

Functional Specifications:

• Integral Recycling Delay Timer: 10 minutes ON, 15 seconds OFF cycle, 120 volt input.
• Power: 120 VAC +10%/-15%, 50/60 Hz.
• Timing Range: 10 minutes (600 seconds) ±10%.
• Output: SPST NO relay rated for 8 amps (resistive) @ 250 VAC or 1/8 hp @ 250 VAC.
• Electrical Connections: Terminal block with clamp-type screw connector suitable for 12-26 AWG.
• Temperature Range: -40°F to 140°F (-40°C to 60°C).

This switch is engineered for durability and reliability, ensuring consistent performance in various environmental conditions. Perfect for applications in HVAC systems, combustion control, and other industrial uses.