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Manufacturer Resources
Product Specs
- Connection Type:
- Bolted
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Number Of Conductors:
- 2
- Product Group:
- Grounding & Bonding
- Product Type:
- Parallel-Groove Clamp
- Selling Unit Of Measure:
- each
- Type2:
- Wire or cable compression splice
- Department:
- Electrical
- Product Subgroup:
- Ground Clamps
- Product Size:
- Height 2 X Length 1-3/8 X Width 1-5/8 inch, Bolt 3/8 inch
- Installation Category:
- None
- Product Material:
- Aluminum
Blackburn PAE2121-9-B1-5 – Frequently Asked Questions
1) What wire sizes does the Blackburn PAE2121-9-B1-5 parallel groove clamp take?
The PAE2121-9-B1-5 is rated for 2/0 through 8 conductors, and it holds two conductors, one in each groove. Anything larger than 2/0 or smaller than 8 AWG needs a different clamp body.
2) Can I use this aluminum parallel groove clamp on copper conductors?
The clamp body is aluminum with a Contax insert, so it is built for aluminum conductors and aluminum-to-aluminum taps. For copper runs or copper-to-aluminum transitions, use a clamp specifically listed for that combination; putting bare copper into an aluminum body invites galvanic corrosion at the joint.
3) How is the PAE2121-9-B1-5 clamp tightened, and what size wrench do I need?
It's a bolted clamp, not a compression fitting, so you set it with a wrench rather than a crimp tool. The bolt is 3/8 inch, and the body measures Height 2 x Length 1-3/8 x Width 1-5/8 inches, so allow room for a socket around the head in tight gutters or pedestals.
4) Is a parallel groove clamp the right choice, or should I use a compression splice?
A parallel groove clamp like the PAE2121-9-B1-5 runs two conductors side by side in grooves and clamps them with a bolt, so it can be installed and removed with hand tools and no dies. A compression splice is permanent and needs the matching crimp tool and die set. Use the bolted groove clamp for taps, service laterals, and any joint you may want to break later; use compression where a sealed, non-removable connection is specified.
5) Does this Blackburn clamp come insulated or does it need taping?
No insulation is supplied on the PAE2121-9-B1-5, the clamp is bare aluminum. If the joint is in a location where it must be covered, plan on a separate insulating cover, tape, or heat shrink as part of the job.
6) Is the PAE2121-9-B1-5 sold individually or in a box?
It is sold each, so quantity on an order is the number of clamps you get. Count one per tap point and add spares for stripped or over-torqued bolts on larger jobs.
7) What is the Blackburn PAE2121-9-B1-5 used for in a grounding and bonding job?
It's a two-conductor parallel groove clamp used to tap or splice conductors in grounding and bonding work, aluminum body, bolted, covering 2/0 through 8. Typical use is joining a grounding electrode conductor or bonding jumper to a larger run without cutting the main conductor.
8) Where is the Blackburn PAE2121-9-B1-5 clamp made, and what is the manufacturer part number for a quote?
Order it as Blackburn part number PAE2121-9-B1-5. Country of origin is Mexico, which is the value to cite on submittals or procurement paperwork that asks for it.
How fast can I get the Blackburn PAE2121-9-B1-5 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Blackburn PAE2121-9-B1-5 come with a warranty?
Absolutely. The Blackburn PAE2121-9-B1-5 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Blackburn PAE2121-9-B1-5?
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