Choosing the Right Wired Doorbell Transformer

Wired doorbells in your home are low-voltage devices. A wired doorbell transformer transforms the power from 120V to 16V so it may be used by your wired doorbell. Virtually all wired doorbells will use 16-volts, and most transformers are 16V. The wattage, or VoltAmps is the difference between most wired doorbell transformers and you want to make sure you wired chime has enough wattage to serve the system. Having an undersized transformer will cause it to burn out.

Model Voltage VA(Watts) Notes
DH905 16V 10VA Ideal for up to one doorbell, chime, buzzer, or bell.
DH910 8V-16V-24V 10VA and 20VA Tri-voltage transformer, ideal for up to two chimes.
T1610 16V 10VA Ideal for one chime w/ bell wire run less than 50 feet.
T1630 16V 30VA Ideal for multi-chimes