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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Group:
- Wire Termination
- Product Type:
- Aluminum Pin Terminal
- Replacement Product Id New :
- 7TAH007770R0081
- Selling Unit Of Measure:
- each
- Standards:
- UL E63167
- Sub Brand Label:
- Blackburn
- Type2:
- Cable or wire lug
- Department:
- Electrical
- Product Subgroup:
- Pin Terminals
- Product Color:
- Red
- Product Material:
- Aluminum
Blackburn PA21 – Frequently Asked Questions
1) What wire size does the Blackburn PA21 pin terminal take?
The Blackburn PA21 is sized for 2/0 stranded conductor. It's a pin adapter terminal, so the stranded 2/0 cable goes into the barrel and the solid pin end goes into the breaker or lug that won't accept stranded wire.
2) Is the Blackburn PA21 UL listed?
Yes. The PA21 carries UL file E63167.
3) Will one PA21 work on 1/0 or 4/0 cable instead of 2/0?
No. The PA21 is a single-size pin adapter built for 2/0 stranded. Putting it on a smaller or larger conductor gives you a crimp that won't hold mechanically or electrically. For other conductor sizes you need the matching pin adapter in the same Blackburn PA series, identified by its own color code.
4) Why would I use a pin adapter terminal instead of just landing the stranded cable directly?
Some breaker and equipment terminals are only rated for solid or pin-type conductors, or the lug jaw won't clamp stranded cable reliably. A pin adapter like the PA21 crimps onto the 2/0 stranded conductor and presents a solid pin that the terminal can clamp properly. If your equipment lug is already listed for stranded conductors, you don't need an adapter at all.
5) Is the Blackburn PA21 aluminum or copper, and can I use it on copper conductor?
The PA21 body is aluminum. Aluminum-bodied pin adapters are commonly made dual-rated AL/CU, but the only material on record here is aluminum, so match it to the conductor and terminal metals your installation calls for and confirm the marking stamped on the connector before landing copper in it.
6) Has the Blackburn PA21 been superseded by a newer part number?
There is a replacement product ID on record for the PA21: 7TAH007770R0081. If you're standardizing a stockroom or matching a submittal, that's the current designation to reference alongside the PA21 catalog number.
7) Where is the Blackburn PA21 made? I have a domestic-content requirement on a government job.
Country of origin on the PA21 is the United States, which is what a federal or institutional buyer with a domestic-sourcing clause needs documented.
8) Is the PA21 a crimp connector or a mechanical set-screw lug?
The PA21 is a compression-type pin adapter, catalogued as a cable or wire lug, so it's installed with a crimp tool and the correct die rather than a set screw. Plan on having the matching die on site; a pin adapter crimped with the wrong die is not a listed installation.
9) What does the red color on the Blackburn PA21 mean?
Red is the die-code/size identifier on the PA21, which corresponds to the 2/0 stranded conductor it's built for. On a job with several pin adapter sizes in the bag, the color is how an electrician sorts them fast without reading every stamp.
10) Does the PA21 come in a pack or as a single piece?
It sells each, one pin adapter per unit, so order one per conductor you're terminating. A three-phase feeder plus neutral takes four.
How fast can I get the Blackburn PA21 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
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 PA21 come with a warranty?
Absolutely. The Blackburn PA21 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 PA21?
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