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AL PARAGRV CLAMP EXTRUDED 397-2/0
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 3-3/8 X Width 2-5/16 inch, Bolt 1/2 inch
- Installation Category:
- None
- Product Material:
- Aluminum
Blackburn PAE3939-9-2 – Frequently Asked Questions
1) What conductor sizes does the Blackburn PAE3939-9-2 parallel groove clamp accept?
The PAE3939-9-2 is rated 397 through 2/0, which is the range called out in the product name. It's a two-conductor clamp, so one run and one tap land in the grooves, each anywhere in that 397 MCM to 2/0 span. If your tap is smaller than 2/0 or your main is larger than 397, this is the wrong size clamp in the family.
2) Can I use an aluminum parallel groove clamp like the PAE3939-9-2 on copper conductors?
The PAE3939-9-2 body is extruded aluminum. Aluminum-bodied parallel groove clamps are used on aluminum-to-aluminum connections unless the manufacturer rates the part AL/CU for dual metal use, and no dual-rating is carried here. For a copper run, use a copper or bronze bodied clamp instead.
3) Is the PAE3939-9-2 a bolted clamp or a compression connector?
Bolted. It uses a 1/2 inch bolt to clamp the two conductors in the grooves, so you install it with a wrench rather than a hydraulic crimp tool. That makes it re-openable for retaps or conductor changes, unlike a compression sleeve that is a one-time swage.
4) How much room do I need in the enclosure or on the rack for this Blackburn clamp?
Plan around a body of Height 2-9/16 x Length 3-3/8 x Width 2-5/16 inches, plus wrench swing on the 1/2 inch bolt. Tight pull boxes and crowded gutters are where these run out of room, so check the space between your run conductor and the enclosure wall before you commit to this size.
5) Is the PAE3939-9-2 insulated, or do I need to tape or boot the connection?
It's a bare metal clamp with no insulation on it. Any insulating or re-jacketing at the splice is done in the field with tape, a cover, or a boot you supply separately.
6) What is a parallel groove clamp actually used for on a grounding or bonding job?
A parallel groove clamp joins two conductors running alongside each other, typically a main run and a tap, and holds them in machined grooves under bolt pressure. On grounding and bonding work that means tapping a ground conductor off a main, or splicing two runs, without cutting the main. The PAE3939-9-2 handles that on aluminum in the 397 to 2/0 range.
7) Can I land three conductors in this Blackburn parallel groove clamp?
No. The PAE3939-9-2 is built for two conductors, one per groove. For a third conductor you need a second clamp on the run or a multi-groove body.
8) Does the PAE3939-9-2 come as a single clamp or in a pack?
Sold each. The order is one complete clamp with its 1/2 inch bolt, so if you're landing taps at six poles you order six.
How fast can I get the Blackburn PAE3939-9-2 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 PAE3939-9-2 come with a warranty?
Absolutely. The Blackburn PAE3939-9-2 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 PAE3939-9-2?
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