Blackburn SAC 1000 R 400 TN AL Comp Reducer 1000 - 400 TINPlate

The SAC 1000 R 400 TN is a reducing compression splice that transitions 1000 kcmil on the large end to 400 kcmil on the small end. It is one barrel with two different bores, so it joins a 1000 kcmil run to a 400 kcmil run in a single crimped connection rather than needing a splice plus a separate reducer.

It is an aluminum-bodied compression splice with a tin-plated finish. Tin plating over aluminum is what allows the connector to be used on aluminum or copper conductors without the dissimilar-metal corrosion you get from bare aluminum against copper. The barrel is tin plated per the product's surface finish spec.

There is no insulation on this connector, the insulation material is listed as none. The crimped barrel is bare metal, so you finish it yourself with heat-shrink tubing, a cold-shrink sleeve, or tape build-up appropriate to the circuit voltage and whether the splice will be direct buried or in a wet location.

The connector is 7 inches long overall. Add your bend radius and the length of any heat-shrink sleeve over it when you check clearance in a pull box, handhole, or gutter, because that 7 inches is the metal alone before insulation is applied.

This is a compression connector, so it must be crimped with a die-type tool, and at 1000 kcmil that means a hydraulic crimper with the correct die, not a hand ratchet. If you do not have hydraulic tooling on site, a mechanical set-screw reducer is the alternative approach to the same 1000-to-400 transition. Compression is preferred where you want a permanent, tamper-resistant joint with no torque to re-check.

Country of origin on the SAC 1000 R 400 TN is the United States, which is what public-works and federally funded projects normally require documentation for. The orderable part number is SAC 1000 R 400 TN.

Sold each. Order one reducer per splice point, and remember each transition also needs its own insulating cover since none is supplied with the connector.