Blackburn CF4040-1 COPPER H-TAP

The CF4040-1 copper H-tap is sized for conductors measuring .414 to .528 inch in diameter. Measure the bare conductor, not the insulation OD, when you check the fit. If your run and tap conductors fall outside that window, you need a different H-tap barrel size rather than forcing this one, since a compression connection only performs when the conductor fills the barrel.

It is a compression-only connector. The CF4040-1 is crimped with a hydraulic or battery compression tool and the correct die for the barrel; there are no bolts, set screws, or mechanical clamping. If you want a tap you can install with hand tools and re-open later, use a bolted split-bolt or mechanical tap connector instead.

Bare copper, no insulation on the connector. Insulation Material is listed as None and the surface finish is bare, so after crimping you supply the insulation yourself, whether that is tape, heat shrink, or a cover appropriate to the voltage and location. Plan that material into the job.

No. It is a copper connector with a bare copper body, intended for copper-to-copper taps. Aluminum or mixed copper-to-aluminum connections call for a connector rated AL/CU with the appropriate inhibitor compound, not this one.

It is RUS Accepted, which is the acceptance utilities and rural electric cooperatives look for on distribution and service connectors. That is the standard listed for the CF4040-1; confirm your own utility's approved materials list covers the barrel size you are specifying.

The barrel is 1-1/8 inch in length, so it takes up little room in a pedestal, handhole, or crowded enclosure. Allow for the compression tool head to swing around it, which is usually the real space constraint rather than the connector itself.

An H-type compression tap puts the run and the tap conductor side by side in a single copper barrel and is crimped into one solid mass, so there is nothing to loosen with thermal cycling or vibration, and no periodic retorquing. A split bolt is reusable and installs with a wrench, which is why it still wins on temporary or frequently changed connections. For a permanent buried, direct-bury, or utility tap, the compression H-tap is the usual call.

It is sold each, so you order the exact count you need for the job rather than a carton. Order by manufacturer part number CF4040-1.