Backer Hotwatt Glasrope Heaters Tubular Sheated Glasrope Heaters
Eagle Sensors & Controls is an authorized Backer Hotwatt distributor. Contact us with sales and application support.
Glasrope-and-Foil-HeatersDescription
U.L. Recognized – No. E56973
Applications
Blueprint Machinery, Cabinets, Compressor Crankcase Heating, Copiers, and Defrost Heaters.
Features
- The Backer Hotwatt Tubular Sheathed Glasrope Heater is a fiberglass insulated
element encased in aluminum or stainless steel tubing. - The stainless steel heater is for higher temperatures or corrosive applications.
- Extra long leads and special terminations are available.
(6″ long leads are standard.) - A seal is used for wet or moist applications.
- Made in U.S.A.
- The heater may be formed to special configurations.
- Special wattage distribution for specific heat location.
Construction
- Fiberglass insulation.
- Premium grade resistance wire element.
- Aluminum or stainless steel tubing.
- Fiberglass insulated leads.
| 1/4″ Diameter Standard with One Lead Each End | ||
|---|---|---|
| Length | Catalog Number Aluminum Sheath | Maximum Wattage |
| 24″ | AT25-24 | 120 |
| 30″ | AT25-30 | 150 |
| 36″ | AT25-36 | 180 |
| 42″ | AT25-42 | 210 |
| 48″ | AT25-48 | 240 |
| 54″ | AT25-54 | 270 |
| 60″ | AT25-60 | 300 |
| 3/8″ Diameter Standard with Both Leads Same End | ||
|---|---|---|
| Length | Catalog Number Aluminum Sheath | Maximum Wattage |
| 24″ | AT37-24 | 200 |
| 30″ | AT37-30 | 250 |
| 36″ | AT37-36 | 300 |
| 42″ | AT37-42 | 350 |
| 48″ | AT37-48 | 400 |
| 54″ | AT37-54 | 450 |
| 60″ | AT37-60 | 500 |
| Specification | 1/4″ Dia. | 3/8″ Dia. |
|---|---|---|
| Minimum Inside Radius
For Forming |
1/2″ | 1″ |
| Minimum Helical Diameter
For Forming |
1″ | 2″ |
| Normal Cold Ends | 1″ | 1″ |
| Standard Lead Length | 6″ | 6″ |
| Maximum Temperature | 550° F | 550° F |
| Watts Per Linear Inch vs. Temperature In Air | |
|---|---|
| Temp. ° F | Watts/Linear Inch |
| 220° | 1 |
| 340° | 2 |
| 390° | 3 |
| 490° | 4 |
| 550° | 5.5 |
Standard Terminations
SF1: Flexible leads for applications where leads can be bent close to the end of the unit. Leads are non-repairable.
Special Features
SF11A: Ring terminals. Specify size: #6, #8, #10.
SF11B: Straight quick connect terminals. Specify male or female and size: 3/16″ or 1/4″.
SF11C: Flag quick connect terminals. Specify male or female and size: 3/16″ or 1/4″.
SF11D: Spade terminals. Specify size: #6, #8, #10.
SF37: Stainless steel sheath.
How To Order
Specify: diameter, length, wattage, voltage, lead length, and special features (if required), and configurations (attach drawing).