RT1640LS 16.5VAC 40VA Regulated AC Power Transformer (Black)

The RT1640LS is a heavy-duty 16.5 VAC 40 VA plug-in AC transformer designed to power wired security alarm control panels, access control systems, video doorbells, and HVAC equipment. Delivering up to 2.4 A continuous alternating current, it provides clean, uninterrupted AC power required for panel motherboards, auxiliary sensors, and backup battery charging circuits.

Housed in a durable black flame-retardant ABS casing with integrated terminal screw connections and a grounding pin, the RT1640LS mounts directly to standard wall outlets. Built-in thermal fuse protection shields connected security alarm panels from electrical overloads and short circuits.

Key System Features & Functionality

• Standard 16.5 VAC / 40 VA Output: Delivers 16.5VAC output at 40\ VA capacity (~2.4 A), fully compatible with DSC, Honeywell Ademco, Resideo, Interlogix, and Bosch alarm panels.

• Screw Terminal Connections: Heavy-duty terminal screw block provides easy, reliable attachment for 18–22 AWG power wiring.

• Internal Thermal Cutoff Protection: Integrated auto-reset thermal fuse guards against power surges, short circuits, and overheating.

• Direct Wall Plug Enclosure: Plugs directly into standard 120 VAC outlets with a grounding pin and top mounting tab for wall outlet screw locking.

• Durable Black ABS Casing: Solid black housing designed for discreet installation in utility rooms, rack closets, and commercial equipment panels.