Broan Nu-Tone Door chime transformer features a thermal cut-off switch to shut off the door chime system in the event of extreme temperature. It has a voltage rating of 8 Volts, 16 Volts, 24 Volts and power rating of 20 VA. Transformer has lock-mount or wall-mount for easy installation and is perfect for a single/multi door chimes. It measures 1.906 Inch x 2.015 Inch x 2.530 Inch. Transformer is cULus listed. Also known as -Broan Nu-Tone C909 Signaling Tri Volt Door Chime Transformer 1 Phase 8/16/24 Vo-Tri-Volt Transformer - C909-Tri-Volt Transformer, Doorbell Transformer, Rectangle
