Blackburn KL55-1 COMPRESSION SLEEVE/CONNECTOR

It's a compression splice, so it is installed with a die-type crimping tool rather than tightened with a set screw. Blackburn lists the KL55-1 as a wire or cable compression splice for service entrance work, joining 2 conductors end to end.

The KL55-1 is a bare sleeve with no insulation material on it. After crimping you need to insulate the joint yourself, with heat-shrink tubing, a cold-shrink sleeve, or tape rated for the circuit voltage and the environment the splice sits in.

Blackburn states the KL55-1 passes the requirements of ANSI C119.4, which is the standard covering connectors for use between aluminum-to-aluminum, aluminum-to-copper and copper-to-copper conductors. It is catalogued as a service entrance compression splice, which is the intended application.

The KL55-1 is listed at a 3-1/2 inch product size. That barrel length matters when you're splicing inside a meter socket, pull box or trough, so check you have that much straight run plus room for the crimp tool head before you commit to the location.

A compression sleeve is the choice when you want a permanent, non-reopenable joint made with a tool and die, typical on service entrance and underground feeder splices. A split-bolt or set-screw lug is what you use when the connection may need to come apart later or when you have no crimp tool on site. The KL55-1 cannot be reused once crimped, and being uninsulated it also needs a separate cover, where many set-screw connectors ship with an insulating cap.

Each. The KL55-1 is sold as a single sleeve, so order one per splice you have to make, and remember a two-conductor feeder needs two.

Blackburn KL55-1 is the manufacturer part number for this compression sleeve/connector. It is made in Mexico. There is a single model on it, so KL55-1 is all you need to specify.