Features: Premium HVAC converter 4021F delivers 40VA rate power with 24V output, carriers systems as a direct drops in replacement for outdated models. encase in strong steel with a fully enclosed metal housing, this industrial converter resists dust/moisture while meeting specifications for furnaces circuit reliability. designs for HVAC technicians, industrial maintenance , and DIY enthusiasts requiring strong 208 240V to 24V power conversion in critical climate controllers device . Optimizes performances in heating/cooling equipment, thermostats internet , air compressors, and gas valves operations across commercial/residential HVAC installations. Features universal primary electric compatibility (50/60Hz) for easy retrofitting without wiring modifications, ensuring safe operation in demanding heat environment. Specifications: Component : steel Length: about 62mm/2.4inch Primary electric 208/240V, 50/60Hz Secondary electric 24V Rate power 40VA Package Includes: 1xHVAC furnaces converter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.