Blackburn 9HPS HSTRNGTH SPLITBOLT CONN 10STR-12SLD

The 9HPS is rated for a maximum of 10 AWG stranded and 12 AWG solid conductor, which is where the "10STR-12SLD" in the part name comes from. It's a small-capacity split bolt, so don't try to force larger branch-circuit or service conductors into it; step up to a larger split bolt in the same family for anything above 10 AWG.

Yes. It carries UL file E9809 as a mechanical connector, which is the listing an electrical inspector will look for on a tap or splice connector.

It ships bare, with no insulation on the connector itself. The splice has to be insulated in the field, either with tape built up to the insulation level of the conductors or with a split bolt insulating cover sized to the connector, unless it's landing inside an enclosure where the code permits it bare.

The 9HPS body is copper alloy with an electro tin-plated finish. Tin plating is what allows a copper-alloy connector to be used with aluminum as well as copper without the plating being stripped by bare copper contact, and the plating also slows corrosion in damp locations. Match the connector to the conductor material called out in your listing or on the drawing before you make the tap.

A twist-on wire connector is quicker for pigtailing inside a box, but it can't tap a running conductor without cutting it. A split bolt like the 9HPS clamps a tap conductor directly onto an unbroken run, which is why it's the standard choice for grounding electrode taps, bonding jumpers, and taps in pull boxes and gutters. For a straight splice of two 12 AWG solids in a device box, a wire nut is the simpler answer.

It's sold each, so quantity ordered equals the number of connectors you get. Count one per tap or splice and add spares; there is no bagged multiple to work around.

Blackburn 9HPS is the part number, and it's also the manufacturer part number, so it's the same designation whether you're ordering from a distributor or matching an existing bill of material. Country of origin is Mexico.