Duct Limit Switch Product Guide
We decided to upload this table giving our customers the accessibility to a cross reference of our duct limit switches with other models including White Rodgers, Honeywell, and Johnson Controls. Our duct limit switches listed are comparative to a couple of the top competitors if not identical. Pricing listed is Retail, contact us for larger quantity pricing and availability.
Duct limit switches are installed in air ducts to shut down heating, air conditioning and ventilation equipment when air temperature in duct exceeds a pre-set limit. The high limit firestats have a temperature range of 100°F to 250°F with multiple element insertion lengths.
We also offer a fixed temperature limit control. Our 4PU Series has an element insertion length of 5″ and can be factory set at 200°F, 165°F, and 125°F. Visit the shop to learn more about our duct limit controls.
Can’t find your part number listed? Give our direct support a call with your switch or application requirements and one of our customer service representatives will assist you!
| Other Part Number | Other Price | Our Part Number | Our Price | Description |
| White Rodgers, 5D51-35 | $98.35 | TC1051A3C | $64.60 | Adjustable Temperature Range, 100°-250°F. 5″ Element. Manual Reset |
| White Rodgers, 5D51-90 | $98.35 | TC1081A3C | $64.60 | Adjustable Temperature Range, 100°-250°F. 7.5″ Element. Manual Reset |
| White Rodgers, 5D51-78 | $97.45 | TC1001A3C | $64.60 | Adjustable Temperature Range, 100°-250°F. 11″ Element. Manual Reset |
| Honeywell, L4064B1469/U | $90.45 | TC1051A3C | $64.60 | Adjustable Temperature Range, 100°-250°F. 5″ Element. Manual Reset |
| Honeywell, L4064B2236/U | $81.69 | TC1081A3C | $64.60 | Adjustable Temperature Range, 100°-250°F. 7.5″ Element. Manual Reset |
| Honeywell, L4064B1451/U | $96.38 | TC1001A3C | $64.60 | Adjustable Temperature Range, 100°-250°F. 11″ Element. Manual Reset |
| Johnson Controls, A25 Series | $162.00 | TC1051A3C
TC1081A3C TC1001A3C |
$64.60 | Adjustable Temperature Range, 100°-250°F. 5”-11″ Element. Manual Reset |