Commercial Building Controls : Pneumatic Products : Pneumatic Switches : P643 : P643A1007/U
Pneumatic / Electric Switch including SPDT switch and adjustable differential
Overview
Converts a pneumatic signal from a controller to an electrical switching action to provide start and stop control. Replacement devices available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell pneumatic/electric switches.
Features
- Adjustable differential.
- Externally visible scales.
- Heavy-duty switch.
- Integral gage connection.
Product Specifications
- Application
- Pneumatic / Electric Switch
- Dimensions (in.)
- 7 1/32 in. high x 3 13/16 in. wide x 2 3/4 in. deep
- Dimensions (mm)
- 179 mm high x 97 mm wide x 70 mm deep
- Maximum Safe Operating Pressure (psi)
- 25 psi, maximum
- Maximum Safe Operating Pressure (kPa)
- 170 kPa, maximum
- Temperature Range (F)
- -30 F to +125 F
- Temperature Range (C)
- -34 C to +52 C
- Includes
- SPDT switch
- Mounting
- Holes in back of case
- Frequency
- 50 Hz; 60 Hz
- Approvals, Underwriters Laboratories Inc.
- Listed SDFY
- Electrical Connections
- Knockouts (3) for 1/2 in. conduit
- Voltage
- 120 Vac; 208 Vac; 240 Vac; 277 Vac; 480 Vac
- Approvals, Canadian Underwriters Laboratories Inc.
- Listed
- Pressure Range (psi)
- Switching Pressure--0 to 22.5 psi
- Pressure Range (kPa)
- Switching Pressure--0 to 155 kPa
- Differential Pressure Range (psi)
- 3 to 13 psi adjustable
- Differential Pressure Range (kPa)
- 20 to 90 kPa adjustable
- Switch Operation
- Converts pneumatic signal to electrical switching action
- Switch Type
- Pneumatic/Electric Switch
- Air connections
- Compression fitting 1/4 in. (6 mm) O.D. tubing
- Current
- 120 Vac: 8.0 AFL, 48.0 LRA, 17.0 A resistive,208/240 Vac: 5.1 AFL, 30.6 ALR, 17.0 A resistive,270 Vac: 17.0 A resistive,480 Vac: 3.5 AFL, 21.0 ALR, 10.0 A resistive
