Step-down transformer converts 120/240V primary to 24VAC secondary at 40VA capacity. Designed for HVAC control circuits, thermostats, zone valves, and gas valve applications in residential and light commercial systems. Features foot or knockout mounting, 9" primary leads, internal thermal protection, and NEC Class 2 compliance.
Resideo AT140A1042 120/240V to 24V 40VA Transformer
Resideo
$47.95
In Stock — 10+ available
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Resideo
Resideo AT140A1042 120/240V to 24V 40VA Transformer
- SKU:
- AT140A1042
Specifications
- Product Type:
- Control Transformer
- Subcategory:
- Step-Down Transformer
- Application:
- Residential/Commercial
- System Type:
- Furnace, Air Handler, Heat Pump, Split System, Boiler
- Installation Type:
- OEM Replacement
- Voltage:
- 120/240V primary to 24V secondary
- Voltage Class:
- Low Voltage
- Phase:
- Single Phase
- Mounting Type:
- Foot Mount or Knockout
- Fuel Type:
- Electric
- Connection Type:
- Lead Wires
- Ambient Temperature:
- -20°F to 105°F
- Input Voltage:
- 208/240V AC
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