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| Heating and Cooling Components Application Selection and Cross Reference Guide (English) | 07/2024 | 2001713 kb |
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| Residential Combustion Application Selection and Cross-Reference Guide (English) | 11/2023 | 9194921 kb |
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Install (2)
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| Installation Instructions for AT120A, AT140A, AT150A, AT175A Universal Transformers (English) | 08/2020 | 712552 kb |
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| Product Data for AT120 AT140, AT150, AT160, AT175 Transformers (English) | 03/2021 | 2022815 kb |
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| Application | Heating and or cooling control systems |
|---|---|
| NEMA Rating | No |
| Primary Connection Size | 9 in, 229 mm |
| Primary Input Voltage | 120 V ac |
| Secondary Connection Size | 9 in, 229 mm |
| Secondary Connection Type | Leadwires |
| Secondary Open Circuit Voltage | 27 V.O.C. |
| VA Rating | 20 VA |
| Frequency | 60 Hz |
| Approvals and Standards | CSA Certified: A & B models, NEC Class 2 |
| Includes | Metal end bells |
| Warranty | 1 Year |
| Color | Black, Metallic |
| Ambient Operating Temperature (Max) | 105 °F, 41 °C |
| Ambient Operating Temperature (Min) | -20 °F, -29 °C |
20 VA general purpose transformers power 24 Vac circuits. Although typically used in heating/cooling control systems, they can be used in any application that doesn't exceed the load ratings.
- Provides color-coded leadwires for primary connections and screw terminals for secondary connections
- Includes fixed 1/4 inch (6mm) male quick-connects or color-coded leadwires for primary and secondary connections
- Meets NEC Class 2 requirements and Underwriters Laboratories Standard UL 1585
- Identified Class 2 not wet, Class 3 wet