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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 2-9/16 X Length 1-5/8 X Width 2-1/4 inch, Bolt 1/2 inch
- Installation Category:
- None
- Product Material:
- Aluminum
Blackburn PAE3921-9-2-P – Frequently Asked Questions
1) What conductor sizes does the Blackburn PAE3921-9-2-P parallel groove clamp take?
The PAE3921-9-2-P is rated for a 397 run conductor down to 3/0 tap, per the product designation "397-3/0STL". It is a two-conductor clamp, so it joins one run to one tap in a single bolted connection.
2) Is the PAE3921-9-2-P clamp aluminum, and can I use it on copper conductors?
The body is aluminum. Aluminum-bodied parallel groove clamps of this kind are made for aluminum conductors; for a copper-to-aluminum transition you want a clamp or connector specifically rated for dual metals, not a plain aluminum body.
3) How is the Blackburn PAE3921 parallel groove clamp tightened, and what bolt size does it use?
It is a bolted connection using a 1/2 inch bolt, tightened with a wrench or socket. No crimping tool or die set is needed, which is what makes this style practical for field taps and line work where you cannot bring a press.
4) What are the dimensions of the PAE3921-9-2-P clamp for clearance in a tight enclosure?
Height 2-9/16 by Length 1-5/8 by Width 2-1/4 inches, with a 1/2 inch bolt. Allow wrench swing on top of that footprint when you are working inside a pedestal or a crowded ground bar area.
5) Should I use a bolted parallel groove clamp or a compression splice for a tap connection?
A parallel groove clamp like the PAE3921-9-2-P makes a mechanical, bolted tap that can be loosened and re-made, so it suits field taps, temporary work, and anywhere a crimp tool is not on site. A compression splice is permanent and usually preferred for buried or inaccessible connections. This clamp serves the wire or cable splice role with a bolt instead of a die.
6) Is the PAE3921-9-2-P insulated?
No insulation is supplied with it. It is a bare aluminum clamp, so any covering, tape, or insulating boot over the finished connection has to be specified separately.
7) Is the Blackburn PAE3921-9-2-P sold individually or in a box?
Sold each, so the order quantity is the number of clamps you get. Count one per tap connection when you are taking off a job.
8) Where is the Blackburn PAE3921-9-2-P manufactured?
Manufactured in Mexico. That matters on public work where country of origin has to be documented in the submittal.
How fast can I get the Blackburn PAE3921-9-2-P delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 PAE3921-9-2-P come with a warranty?
Absolutely. The Blackburn PAE3921-9-2-P 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 PAE3921-9-2-P?
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