# Electric motor connection diagram

 Forum topic by brucenjen posted 10-08-2014 02:31 PM 1071 views 0 times favorited 5 replies
 brucenjen6 posts in 991 days 10-08-2014 02:31 PM Topic tags/keywords: bandsaw jointer plane question resource electrical motor I have a 1 ½ hp, 4 pole single phase, 1720 rpm, 115/230 volt motor. I am attempting to wire the motor for 115 volt. I set the continuity tester on 2,000 ohms. When the leads were placed together the reading was 0. The attached pic is the plate on the motor. Readings between the following wires.Black White 1 Red Yellow 1 2 Grey = capacitor White Red 1 Black Red 0White Yellow 0 Black Yellow 1 Assuming that: Black 1, White 2, Red 3, Yellow 4 This may reflect the correct wiring on that motor’s plate, but what about the capacitor? L1 L21-3 2-4Black Red White Yellow What do I do with the capacitor? The motor has three placed to connect wires: 1 3 2-4Black Red White YellowGrey Grey Ok? If the motor needs to be reversed: 1-3 4 2Black Red Yellow White Grey GreyOk? Any help would be appreciated. Should perk up the bandsaw.

## 5 replies so far

 dozer5792 posts in 1163 days #1 posted 10-08-2014 02:40 PM Bruce your on the right track, wire it as the diagram shows. The gray wires are the starting winding with a cap for extra tork for start up. put one gray wire one each line. REO911 posts in 1738 days #2 posted 10-09-2014 01:28 AM provide a picture of the connection area. brucenjen6 posts in 991 days #3 posted 10-09-2014 02:35 AM Here it is with: Line 1: black (1)/grey – red(3)/grey >>> White(2)-Yellow(4)My numbers are based on my limited understanding of using a continuity tester. OldWrangler731 posts in 1258 days #4 posted 10-09-2014 09:45 AM This is how all my replacement motors have looked and you are right about the wiring. It’s not rocket science just standard 110/115 connecting. I think you have it figured out. -- I am going to go stand outside so if anyone asks about me, tell them I'M OUTSTANDING! brucenjen6 posts in 991 days #5 posted 10-09-2014 02:40 PM Thanks for the help.