Blackburn ASC 250 TN Alum Comp Splice 250kcmil 100 pc

The ASC 250 TN is a tin-plated aluminum compression splice, and the tin plating is what lets it be used on either aluminum or copper conductors. Bare aluminum bodies are restricted to aluminum; tin plating is the standard indicator of a dual-rated barrel. It also meets ANSI C119.4, the standard that covers connectors for aluminum and copper conductors.

It is sized for 250 kcmil conductors, one entering each end. The barrel has two conductor ports, so it joins two runs of 250 kcmil in a straight splice, not a tap or a three-way.

There is no insulation on the ASC 250 TN. The barrel is bare metal, so after crimping you insulate it yourself with tape, heat-shrink, or a cold-shrink sleeve rated for the circuit voltage, or install it inside an enclosure or box where insulation is not required.

The splice measures 2-15/16 inches, so you need that much straight clear space plus room for the crimping die head on each side. In a tight junction box or conduit body, measure the diagonal before committing; 250 kcmil cable has a large bending radius and the barrel cannot be flexed.

This is a compression splice, so it is installed with a die-type crimping tool and the matching die, typically hydraulic or battery-hydraulic at 250 kcmil. Hand crimpers will not develop the force. If you do not have a compression tool on the truck, a mechanical setscrew splice is the alternative for the same conductor size; it installs with a torque wrench instead. Compression is the choice where you want a permanent, non-reenterable joint.

Country of origin on the ASC 250 TN is the United States, which is the value procurement teams need for Buy American and domestic-preference documentation on public work.

It is built to ANSI C119.4, the standard covering electric connectors for use between aluminum and aluminum or copper bare overhead conductors. That is the reference to cite on a submittal or inspection sheet. Order by manufacturer part number ASC 250 TN.

The selling unit of measure is each, so you can order the quantity you need rather than a full box. The 100 piece figure refers to the standard manufacturer carton.