Common readers will know that I really like the Wago lever nuts for making stable, dependable connections in home mains voltage wiring. However one other connector I discover myself utilizing quite a bit is the jelly crimp. In actual fact, I used some immediately to repair some damaged wires in a doorbell.
Jelly crimps are the mainstay of telecom installations and restore (not less than right here within the U.Ok.). I used to be launched to them a few years in the past by an engineer who gave me a handful of them, and ever since I have been hooked.
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These connectors come below numerous completely different names, however jelly crimps is what they’re finest generally known as.
The “jelly” bit within the title comes from the truth that the ends are filled with a dielectric silicone sealant that each provides further insulation and in addition makes the connection weatherproof.
They arrive in two-way (known as UY) or three-way configurations (known as UR), relying on whether or not you wish to join two or three wires collectively, and so they have been particularly designed for becoming a member of stable core copper or aluminum phone and communications wires.
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Together with the UY and UR configuration variations, there’s additionally completely different sizes relying on the outer diameter of the wire you are going to be connecting utilizing the jelly crimp. Common UR and UY are for thinner 22-26 awg wires with an insulation outer diameter of 1.52mm, whereas the UY2 and UR2 sizes accommodates the thicker 19-26 awg wires with a most insulation outer diameter of two.08mm.