Honeywell P643 Pneumatic/Electric Switch
Pneumatic/Electric Switch
P643
Used to convert a pneumatic signal from a controller to an electrical switching action to provide start and stop control of equipment such as fans and pumps. Replacement devices available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell pneumatic/electric switches. Adjustable setpoint.
• Adjustable differential.
• Externally visible scales.
• Heavy-duty switch.
• Integral gage connection.
Select a link under the "item" tab below to order.
| Cat # | Voltage | Includes | Electrical Connections | Differential Pressure Range (psi) | Differential Pressure Range (kPa) | Switching Pressures (psi) | Switching Pressures (kPa) |
| P643A1007 | 120 Vac; 208 Vac; 240 Vac; 277 Vac; 480 Vac | SPDT switch | Knockouts (3) for 1/2 in. conduit | 3 to 13 psi adjustable | 20 to 90 kPa adjustable | 0 to 22.5 psi | 0 to 155 kPa |
| 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 |
|
| Frequency: | 50 Hz; 60 Hz | |
| Temperature Range: | -30 F to +125 F (-34 C to +52 C) | |
| Maximum Safe Operating Pressure: | 25 psi (170 kPa) | |
| Switch Operation: | Converts pneumatic signal to electrical switching action | |
| Switch Type: | Pneumatic/Electric Switch | |
| Mounting: | Holes in back of case | |
| Approvals: | ||
| Underwriters Laboratories Inc. | Listed | |
