DIN or surface mount doorbell transformer (Zamel TRM-12)
For regions where 220-240 V AC 50/60 Hz is used, Alarm.com has tested and certified the use of the Zamel TRM-12 transformer with the following list of SkyBell Doorbell Cameras.
The 12 V AC / 15 VA rating provides the necessary requirements to ensure the reliable functionality of the doorbell camera's components. For more information about the power requirements for the SkyBell Doorbell Camera, see SkyBell HD and Slim Line I Wi-Fi Doorbell Camera (ADC-VDB101/102/105/106) - Data Sheet and Slim Line II Doorbell Camera (ADC-VDB105x/106x) - Data Sheet.
Note: While 16 V AC is recommended for the SkyBell Doorbell Camera, the Zamel TRM-12 enables the SkyBell Doorbell Camera to work with existing lower voltage chimes.
Compatibility
- SkyBell HD Doorbell Camera (ADC-VDB101/102/105/106)
- Slim Line I Doorbell Camera (ADC-VDB105/106)
- Slim Line II Doorbell Camera (ADC-VDB105x/106x)
Specifications
| Device image (front and side) |
|
|---|---|
| Rated primary voltage | 230 V AC (Input range: 220-240 VAC) |
| Rated frequency | 50/60 Hz |
| Rated power (volt-amps) | 15 VA |
| Rated secondary voltage | 12 V AC |
| Protection rating | IP20 |
| Mounting options | DIN (TH35) rail |
| Modular spacing width | 3 |
| Wire gauge | 1.5 mm to 2.5 mm (AWG16 to AWG14) recommended |
| CE certified | Yes |
| Notes | Minimum distance to the other devices - 10 mm |
For more details about the Zamel TRM-12's specifications, refer to the Zamel TRM-12 product page.
To wire a compatible SkyBell Doorbell Camera to the Zamel TRM-12
Caution: The following steps are to be completed while working with a non-energized electrical circuit. Verify no one is working with or around live/energized wiring. If surface mounting, be sure to securely attach the included protection shield so that the 230V AC input (supply) terminals are covered.
- Securely connect the mains/live voltage input (220-240 V AC) power to the 230V AC input (supply) terminals located at the top left corner of the unit.
- Securely connect the doorbell wiring to the 12V AC output (load) terminals located at the bottom right corner of the unit.
- Securely connect the opposite end of the doorbell wiring to the doorbell camera and chime according to the SkyBell Doorbell Camera installation guide. For more information about how to wire the SkyBell Doorbell Camera, see SkyBell Doorbell Camera (ADC-VDB101/102/105/106/105x/106x) - Installation Guide.