Blackburn PAE9921-9P CLAMPS

The PAE9921-9P is a two-conductor parallel-groove clamp. It holds two runs of wire or cable side by side in the grooves and clamps them together with the bolt, making a splice or tap connection between them. If you need to bring in a third conductor at the same point, this is not the fitting for it.

It's a bolted connection, made up with a 1/2 inch bolt. No hydraulic crimper or die set is needed, just a wrench, which is why these get used for field splices and grounding taps where bringing a compression tool to the pole or the ground rod isn't practical.

The body is aluminum. Aluminum-bodied parallel-groove clamps are normally applied on aluminum conductor; putting bare copper directly against an aluminum body creates a dissimilar-metal connection, so confirm the conductor material on your run matches the clamp body before you make it up. For an all-copper splice you want a copper or bronze-bodied clamp instead.

Overall it runs 2-13/16 inch height by 2-1/4 inch length by 2-3/16 inch width, with a 1/2 inch bolt. Allow wrench swing on top of that footprint if you're setting it in a tight pull box or hand hole.

No. It's a bare aluminum clamp with no insulation on it. On an energized splice you'll need to insulate or cover the finished connection separately; on a grounding or bonding connection it's used bare as-is.

Not for the rod itself. A parallel-groove clamp joins two conductors lying parallel in its grooves, so it's the right part for splicing or tapping a grounding electrode conductor to another conductor. Landing on a driven rod calls for a ground rod clamp sized to the rod diameter instead.

They're sold individually, each. Order one per connection point, and remember a two-conductor parallel-groove clamp makes one splice or tap, so count your splices, not your conductor runs.

Country of origin on the PAE9921-9P is Mexico. That matters on public work with domestic-sourcing language in the spec, so check the contract requirement against that before you submit it.