Resideo - Honeywell Home AT20A1123 Standard Universal Stripped-Down TransformerThe AT20A1123 Transformer from Resideo Honeywell Home is a Standard Universal Stripped Down Transformer. Designed for residential combustion control systems, it converts 120V AC input to 24V AC output, delivering 19 VA of power for reliable control circuits while supporting 50 60 Hz operation. Its compact enclosure measures 2 1 4" W x 1 7 8" D x 2" H and is suitable for panel or foot mounting in tight spaces. UL and CSA approvals confirm safety and

Single Burner Control for Gas/Oil/Coal/Combination Fuel

3000 W at 120 V

and configurable shelving for flexible item management across tools

straight-through diaphragm valve uses 1/2 inch compression ports and runs on 24 Volt AC at 60 Hz

It handles 18–240 VAC at 50/60 Hz

modulation

Engineered for direct horizontal immersion in a sensing well

Application: Residential Media Air Cleaner

30 A full load

and a stainless steel seat

canned rotor design with a large stator for steady flow and long life

and optimize energy use with dependable performance