The White-Rodgers S84A-410 class 2 transformer (energy limiting) is designed for 24Vac control applications. Primary to secondary voltages: 120 v to 25V, 60Hz; 40 va output.

Make sure this fits by entering your model number.
Energy limiting design, unaffected by momentary short circuit
Designed to power 24Vac control systems
Plate mounted
Country of Origin: China