Screw connectors • These come in all sizes, for thick or thin wires. • When inserting a wire, the insulation needs to be stripped. Make sure to strip the cable correctly. • Avoid cable insulation enter the connector. This can lead to too much resistance and the connector will heat up and potentially melt. • Avoid insolated cable to be visible outside the connector. This is dangerous. Electrocution or short circuit risk.
Push connectors • Push down the orange part with a flat screwdriver.
• Insert the stripped wire. • Release the orange part. • The cable is now locked in place. Give the cable a small tug to check if the cable is securely fastened. Ferules • These are sleeves that slide over a stripped cable end. • A special crimping tool is needed.
• They are used to align the stripped cable strands and to prevent them splaying when inserting a cable into a screw or push connector. • Use these if you are after a tidy wiring job. Spade connectors • A spade crimp terminal needs to be crimped to the cable • A special crimping tool is needed.
MC4 connectors
• To connect solar panels to MPPTs. • Male or female connectors. • Special crimping tool is needed.
• Can be bought as pre-assembled cables. • MC4 Y-pieces (or Y cables) used to connect solar panels in parallel.
Anderson plugs • Often used in automotive or mobile applications. • Available in different current ratings and cable thicknesses. • Make sure the current rating matches the currents when your system is under load. • They will add to the cable resistance. • Limit or avoid their use.
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