• Adjustable differential.
• Externally visible scales.
• Heavy-duty switch.
• Integral gage connection.Pneuamtic/Electric Switch, 3 to 13 psi adjustable differential| Switch Type | Pneumatic/Electric Switch |
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| Overview | 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 |
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| Switch Operation | Converts pneumatic signal to electrical switching action |
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| Electrical Connections | Knockouts (3) for 1/2 in. conduit |
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| Current | 480 Vac: 3.5 AFL, 21.0 ALR, 10.0 A resistive |
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| Maximum Safe Operating Pressure (psi) | 25 psi |
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| Maximum Safe Operating Pressure (kPa) | 170 kPa |
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| Differential Pressure Range (kPa) | 20 to 90 kPa adjustable |
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| Differential Pressure Range (psi) | 3 to 13 psi adjustable |
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| Air connections | Compression fitting 1/4 in. (6 mm) O.D. tubing |
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| Switching Pressures (psi) | 0 to 22.5 psi |
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| Switching Pressures (kPa) | 0 to 155 kPa |
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| Mounting | Holes in back of case |
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| Temperature Range (F) | -30 F to +125 F |
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| Temperature Range (C) | -34 C to +52 C |
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| Dimensions (in.) | 7 1/32 in. high x 3 13/16 in. wide x 2 3/4 in. deep |
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| Dimensions (mm) | 179 mm high x 97 mm wide x 70 mm deep |
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| Approvals, Underwriters Laboratories Inc | Listed SDFY |
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| Approvals, Canadian Underwriters Laboratories | Listed |
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Product Family
Cross Reference
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| Siemens Building Technologies | 251-0001 |
| Comment | Pressure Elec. Switch |
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| Manufacturer Suggested Replacements |
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All orders are shipped same-day if the order is received by 1:00 PM Central Time. We ship worldwide.
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