Miller Edge PS-20A Pneumatic Switch

The Miller Edge pneumatic switch offers a reliable, cost-effective alternative to an electric sensing edge, ideal for extremely wet, refrigerated doors subject to condensation, and low temperature climates. The PS20A switch enclosure accepts an air hose connection. When the hose is compressed, air is forced into the diaphragm and the switch is activated. This converts the pressure wave into an electrical contact, which signals the commercial door operator to stop and/or reverse motion. Pneumatic switches are compatible with pneumatic configured sensing edges and treadles, and are non-monitored.

APPLICATIONS

• Pneumatic configured sensing edges on motorized doors
• Pneumatic configured treadles
• Signaling hoses on floors

FEATURES

• Compatible with Miller Edge Pneumatic configured sensing edges up to 18 ft.
• Built-in strain relief
• Can be used with standard pneumatic hose
• Normally open or normally closed operation
• Vertical or horizontal mounting
• Easy to install
• Non-monitored
• 2-year warranty

GENERAL SPECIFICATIONS:

• Detection Technology: Pneumatic pressure
• Maximum Pressure: 20 PSI
• Maximum Switch Frequency: 25 per second
• Maximum Edge Length: 18 ft.
• Operating Temperature: -4°F to 158°F (-20°C to 70°C)
• Mechanical Life: Minimum 1,000,000 operations

ELECTRICAL:

• Output: N.O. and N.C.
• Maximum Contact Load: 5 amps @ 250 volts AC
• Electrical Configuration: 2-wire, N.O. and N.C.
• Terminal Configuration: 0.187 in. tabs

PHYSICAL:

• Dimensions: 2"W x 4-7/8"H x 2"D (51 x 124 x 51 mm)
• Housing Material: ABS
• Diaphragm: Silicone
• Contact Material: Silver plated
• Mounting: Screw tabs
• Degree of Protection: NEMA 12