Blackburn PAA69 AL PARAGRV CLAMP 1-2BOLT 2/0-8 OI

The PAA69 is built for conductors from 2/0 through 8 AWG, and it takes two conductors at a time, one in each groove. That covers the usual grounding electrode conductor and bonding jumper sizes on residential and light commercial services. If your run is larger than 2/0, you need a bigger frame in the parallel groove family.

A bolted parallel groove clamp like the PAA69 is the mechanical alternative to a compression connector: it does the same job of joining or tapping two conductors laid side by side, but you install it with a 9/16 wrench instead of a hydraulic crimper, and you can take it apart later for testing or re-terminating. Choose compression when you want a permanent, tool-verified crimp and you already have the dies on the truck. Choose the bolted clamp when you need it removable, or when you are working a service where a crimper is not practical.

Yes, that is the point of the parallel groove design. Both conductors sit in grooves running the same direction and the two bolts clamp them together, so you can run a tap or bonding jumper off a through conductor without cutting it. Both conductors have to fall in the 2/0 to 8 AWG range, and it holds two conductors only, not three.

Bolt head is 9/16 inch on a 3/8 inch bolt, so a 9/16 socket or wrench does it. Two bolts on the frame, both the same size.

Overall the clamp measures 2-7/32 by 1-3/8 by 1-5/8 inches (height x length x width as the spec gives it), so it fits comfortably in most meter sockets, gutters, and pull boxes with room to swing a 9/16 wrench on the bolts. Nothing about it is insulated, so keep the clearances you would give any bare bolted connector.

Sold each. Order the quantity you need for the job rather than by carton. The part number to specify is Blackburn PAA69.

It ships as a complete two-bolt assembly, 3/8 inch bolts with 9/16 inch heads already in the frame. Nothing else to buy except an anti-oxidant compound if your spec calls for it on aluminum connections.