Resideo AT40A1139 is a 40VA control transformer that steps down 240V primary voltage to 24V secondary for HVAC control circuits. Panel-mount design with foot mounting. UL/CSA listed for reliable operation in residential and light commercial heating and cooling systems.
Resideo AT40A1139 Control Transformer 40VA 240V-24V
Resideo
$61.95
In Stock
- Fits brands
- Honeywell
- SKU:
- AT40A1139
- Product Type:
- Control Transformer
- Application:
- Residential/Commercial
- System Type:
- Furnace, Air Handler, Heat Pump, Split System
- Installation Type:
- OEM Replacement
- Voltage:
- 240V Primary / 24V Secondary
- Voltage Class:
- Line Voltage
- Phase:
- Single Phase
- Mounting Type:
- Panel Mount with Foot