Blackburn PAC34539 AL PARAGRV CLAMP W/CONTAX 1/0-8

The PAC34539 is built for conductors in the 1/0 through 8 range, per the product name and description. It's a two-conductor clamp, so it joins one run wire to one tap within that size band. If either conductor falls outside 1/0-8, you need a different clamp body.

The PAC34539 body is aluminum and is supplied with Contax joint compound, which is what makes an aluminum-bodied connector usable on aluminum conductors and on aluminum-to-copper combinations. The compound breaks the oxide film and is already applied, so you don't need to buy an inhibitor separately. Confirm the connector marking on the part matches the combination you're making before you torque it down.

Bolted. The PAC34539 tightens down with a wrench, no hydraulic crimper or die set required, which is why it is common for field taps and grounding runs where you don't want to haul compression tooling. It is a mechanical connector, not a compression splice, even though it serves the same wire-joining role.

Allow for a body measuring 2-7/32 by 1-18/32 by 1-1/4 inches, listed as height by length by width. Add wrench swing on the bolt side. In tight pull boxes or shallow ground bar enclosures that footprint is the thing that decides whether it fits, so measure before you spec it.

No. It's a bare aluminum clamp with no insulating cover or boot. Anywhere the splice needs to be covered, you tape or boot it yourself after torquing. For grounding electrode and bonding conductors that's normally a non-issue, which is the usual application for this clamp.

Not this one. The PAC34539 is rated for two conductors, one in each groove. For a three-way or multi-tap connection you need a multi-groove or multi-tap body rather than doubling wires into a single groove, which won't seat properly and won't hold torque.

Sold each. One PAC34539 clamp per unit, so order quantity to match the number of taps on the job, not by the box.