Main voltage: 120/208/240V AC, WHT-BLK-RED-ORG.Auxiliary voltage: 24 V AC, red - GRN Rated power: 40 VA.Size: 2.7 x 2.2 x 2 inches. This 2-stage transformer to ensure safe operation and long life. Control transformers can be used in industrial, heating and air conditioning control, including air conditioning circuits, relays and gas valves or other applications that do not exceed the listed ratings. No need to worry about wiring, clear wiring diagram and bracket design, you can install it immediately.<br><br>Transformers are very compatible and can replace the following products: for Gemline GT446, for Supco SXT105, for UEI UET105, for UET115, for Grainger 6WU91, for Jard 4031F, for Mars 50203, for White-Rodgers GT4031F, for 90-T40F3 Grainger 6 WU91W91Armstrong TWF424-40, for SSource1 S1-T2404F, for Packard PF42440, for Robertshaw 620-206,620-406,620-482,for Honeywell AT140A1018,AT40A1121.AT40A1139,AT40B.1214. Colour:As Shown Material:plastic<br><br>Package Contents: 1set x 120v to 24v transformer<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.