Learn how to repair, replace or rewire a solar junction box, as well as how to assemble PV wire for the rest of your solar electric system using MC4 connectors.

⏱️Timestamps:
0:06 Intro
0:33 An overview of junction boxes
0:46 Cutting and stripping PV wire
1:22 Connecting PV wire in a junction box
2:51 Introduction to MC4 connectors
3:13 Components of an MC4 connector
3:29 Positive and negative polarity for MC4 connectors
4:20 Installing an MC4 connector on PV wire
7:09 Preparing PV extension cable
8:21 Pairing and joining MC4 connectors
9:21 Disconnecting MC4 connections
9:57 Other videos and resources

🗎 Publication:
Working on Solar Wiring and Fusing (EB-2023-0676)
https://go.umd.edu/EB-2023-0676

For more information, visit: http://go.umd.edu/FarmSolar