Re: DC Contactor Wire Connection:)

[Modular Hippo]

Hi Allan (All),

Thank you for letting me be part of your forum:)

I am currently building a twin motor setup (https://www.youtube.com/@modularhippo) for a boat, and as I have added some DC Contactors to the mix (my original cables did not cater for this) I just want to make sure I connect everything correctly before I add a battery to the setup.

Question: Watching a video [https://youtu.be/m94Yb3e8vOs?si=jzEWkpVFHQaRhILx] by GoldenMotor NA (Canada I believe). In the video the DC Contactor is wired different from the wiring diagram that I received from Golden Motor China.

In a diagram that I have received from Golden Motor (China) the 'Grey' wire coming from the Motor Controller is connected to the A2 (right side small stud) of the DC Contactor. in the video this same wire is connected to the  A1 (small stud left side on DC Contactor). In other words, the grey wire goes to A1 in video, and A2 DC Contactor in my diagram.  The same goes for the wire that you extend from the spliced KSI wire. In the video the wire connects to the A2 (small stud right side of DC Contactor), and in my diagram it connects to the the A1 (small stud left side on DC Contactor). In other words, two contradictions. Can I assume that either setup will work as long as the 'Grey' and 'extended KSI spliced wire' are on opposite sides from each other?

Don't want to add battery to the mix until I am 100% sure I have connected it all correctly, so grateful for any help I can get:)

Thanks
Modular Hippo

[Bikemad]

Hi andto the forum.

The only wiring diagram that I've seen for the EZ controllers does not show any numbering on any of the contactor terminals whatsoever:



As the two small terminals on the contactor are only used to energize the solenoid coil windings inside the contactor it should not matter which way around they are connected, unless the contactor is specifically marked "+" and "-" on those terminals, in which case the "Gray" wire would then connect to the "-" terminal and the KSI wire would go to the "+" terminal.

Hopefully the above will have cleared up any confusion.

Alan