wiring for a MIB

[Remington]

 I'm making a MIB from -----> http://cindybob.com/halloween/mib/
I don't know what to use at the break point [not for sure if this is the term ] so the 120v AC power does not pass to the motor relay/prop 1 on the Wiper motor, lights & Fog machine.  Here's a link of the wiring diagram [Figure 1. Electrics]----->      http://cindybob.com/halloween/mib/page5.html

[JonnyMac]

If you expand Figure 1 on that page you'll see that the 120VAC devices are in fact controlled by relays connected to the Prop-1.  The Prop-1 is a DC only device, so the relays provide a switching interface for 120 volts.

Do not connect 120 volts to the wiper motor; it runs from 12 volts.  That said, do not connect it directly to the Prop-1 -- use a relay.  The wiper motor takes more current than the Prop-1 can supply from its outputs.

Let me suggest that this is not a good beginners project as it deals with high voltage circuits.  I'm not trying to dissuade you, I'm suggesting you enlist the hands-on help of a friend experienced with electricity to help you get all the connections right.