Wire Ferrules
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Ferrules should only be used on stranded wire!
A wire ferrule is a metal tube crimped over stranded wire to secure the strands together. Some may have electrical insulation to protect against any exposed conductor.
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Ferrules may cause a voltage drop under high load, due to most connection methods having minimal contact area with them, which should be taken into consideration.
Ferrules come in many sizes, such as these:
- 20 AWG (am-3738_20)
- 18 AWG (am-3738_18)
- 16 AWG (am-3738_16)
- 12 AWG (am-3738_12)
Some ferrules may come without insulation, such as this 12 AWG ferrule (am-2027).
Ferrules should be crimped with an appropiate crimping tool (am-3739), and always tug-tested.
For more information on how to crimp & use a ferrule, refer to this youtube video (opens in a new tab).