3 Terminal Solenoid Wiring Diagram - In the detailed design phase, the electrical designer must size and select the wires/cables, conduits, starters, disconnects and switchgear necessary for supplying power and control to HVAC equipment.. Solenoid Based Isolators: This type of isolator uses large high current relays to control the flow of current. The diagram below shows two solenoids.. Wiring Color Codes: If you look at any wiring you will see that the wires are all different colors. This is so an electrician knows what they are looking at..
Page 1. SVM 121-A June, 1997 NA-3 AND NA-4 AUTOMATIC WELDING SYSTEMS For use with machines having Code Numbers: NA-3N NA-3S NA-4 Safety Depends on You Lincoln arc welding and cutting equipment is designed and built with safety in mind..