The Altronix TP1640 features 115VAC input and has a 16.5VAC/40 VA output. This is great for a PDK single door controller.
Input: 115VAC 50/60 Hz, 0.48A.
Output: 16.5VAC/40VA (2.4A) output.
Temperature: Operating: 0° C to 49° C (32° F to 120° F).
Relative Humidity 85% +/- 5%.
BTU/Hr. (approx.): 20 BTU/Hr.
System AC input VA requirement: 55.2VA.
Dimensions (approximate): 2.3″W x 2.6″L x 3.4″H (58.42 mm W x 66.04 mm L x 86.36 mm H).
Weight (approximate): Product Weight: 1.25 Lbs. (0.57 kg).