How To Make MC4 Connectors (For Wiring Your Camper Solar Panels)
April 5, 2020 · 3 min · 486K views
What this video covers
Nate demonstrates the assembly of MC4 connectors for solar panel wiring, specifically for creating extension cables between panels and charge controllers.Watch To build a female MC4 connector, crimp a male copper pin onto the stripped wire using ratcheting wire crimpers.1:38 After verifying the crimp with a firm tug, slide the end cap, strain relief, and compression sleeve onto the wire.1:57 Insert the wire into the female connector body until it clicks, then tighten the end cap to secure the compression sleeve.2:01 The process for a male MC4 connector is identical, but requires crimping a female copper pin onto the wire before inserting it into the male connector housing.2:22 Solar panels typically feature a male connector on the positive lead and a female connector on the negative lead, necessitating the use of the opposite gender connector on extension wires.1:15 Always confirm polarity with a multimeter before finalizing connections. Proper crimping and ensuring the internal pin clicks into the housing are essential for a secure, weather-resistant connection.
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