Resideo Honeywell Home Control Transformer, 120 to 208/240 VAC Primary, 24 VAC Secondary, 40 VA, Foot Mount

The Resideo Honeywell Home Control Transformer, 120 to 208/240 VAC Primary, 24 VAC Secondary, 40 VA, Foot Mount (HW-AT140A1000) is a Class 2 control transformer designed to supply low-voltage power for HVAC control circuits. Resideo-published specifications identify multi-tap primary voltage inputs of 120, 208, or 240 VAC at 60 Hz, a 24 VAC secondary output, and a 40 VA capacity suitable for thermostats, relays, zone controls, and gas valves. This model features a foot-mounted open-frame design for panel or equipment mounting and includes primary and secondary screw terminals. Proper job fit requires verifying available primary voltage, total VA load, mounting location, and grounding method per Resideo instructions.