Blackburn ASC1250 R750-7046 TN ASC 1250 R 750-7046 TN

It is a compression splice reducer for wire and cable, meaning it joins two conductors of different sizes in one barrel. The connection is made by compression (crimping with a die tool), not by bolts or set screws, so you need the matching compression tool and die to install it.

Bare, no insulation on the barrel. Insulation material is listed as None, so the splice has to be re-insulated in the field with tape, heat shrink, or a cold shrink sleeve, or installed inside an enclosure where insulation is not required.

The barrel is tin plated, which is the standard plating used so a connector can be run on aluminum as well as copper without a dissimilar metal reaction at the contact surface. Confirm the conductor sizes stamped on the barrel match the two cables you are splicing, since a reducer is sized for one large and one smaller conductor.

It is built to ANSI C119.4, the standard covering connectors for use between aluminum and copper conductors in underground and aboveground applications. That is the reference an inspector or utility spec typically calls for on a compression splice.

A compression reducer like this one gives a permanent, sealed-barrel joint that is crimped once and cannot be backed off, which is why it is preferred in direct-buried, vault, and high-vibration work. A mechanical set screw connector is the choice when you need a reusable joint or have no compression tool on site. Since this barrel is uninsulated, budget for heat shrink or tape either way.

Sold each, one splice per unit, under manufacturer part number ASC1250 R750-7046 TN. Order one per conductor being spliced, so a three phase transition takes three, plus one more if you are reducing the neutral.

Country of origin is the United States, which matters if you are buying against a Buy American or domestic preference clause on a government, utility, or federally funded job.