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BRNZ HOTLINE CLAMP 400-6 SOLID
Manufacturer Resources
Product Specs
- Country Of Origin:
- India (IN)
- Product Group:
- Grounding & Bonding
- Product Type:
- Hot-Line Clamp Protected Thread
- Replacement Product Id New :
- 7TAA267240R0010
- Selling Unit Of Measure:
- each
- Tap Size:
- 4/0 to #6 SOL AWG
- Type2:
- Electrical taps
- Voltage Rating:
- 35 kV
- Department:
- Electrical
- Product Subgroup:
- Ground Clamps
- Product Material:
- Bronze
Blackburn HLC3974 – Frequently Asked Questions
1) What conductor sizes does the Blackburn HLC3974 hot-line clamp take?
The HLC3974 hot-line clamp is rated for a tap range of 4/0 through #6 solid AWG. That covers the usual run of solid copper taps on distribution work, so check the conductor you are landing falls inside that window before you order.
2) What voltage is the Blackburn HLC3974 hot-line clamp rated for?
Rated to 35 kV, so the HLC3974 works on medium-voltage distribution circuits up to that class. Do not apply it above 35 kV.
3) Is the Blackburn HLC3974 clamp bronze or aluminum?
Bronze. That makes the HLC3974 the right choice for copper conductors, where a bronze body avoids the dissimilar-metal issue you get pairing copper with an aluminum-bodied clamp.
4) What does the protected thread feature on the HLC3974 hot-line clamp do for me?
The HLC3974 is a protected-thread hot-line clamp, meaning the eye-screw threads are shielded from weather and contamination so the clamp still turns freely when a lineman comes back to it with a hot stick months or years later. That is the difference between this and an unprotected-thread clamp.
5) Is HLC3974 still the current part number, or has Blackburn superseded it?
Blackburn lists 7TAA267240R0010 as the replacement product ID for the HLC3974. If your spec or purchase order still calls out HLC3974, that is the number the current catalog points to.
6) Can I use the HLC3974 hot-line clamp as a ground clamp for a grounding electrode?
It is a hot-line tap clamp in the grounding and bonding family, built for making a temporary or permanent electrical tap on an energized line at up to 35 kV, not for bonding to a ground rod or water pipe. For a grounding electrode connection you want a rod or pipe ground clamp sized to the electrode diameter instead.
7) Will the HLC3974 hot-line clamp work on stranded conductor?
The published tap range on the HLC3974 is 4/0 to #6 solid AWG. If your tap is stranded, match to a clamp whose range calls out stranded conductor so the groove seats the conductor properly.
8) Is the Blackburn HLC3974 sold individually or in a box?
Each. The HLC3974 hot-line clamp is sold as a single unit, so order the exact count you need for the job rather than a carton quantity.
How fast can I get the Blackburn HLC3974 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 HLC3974 come with a warranty?
Absolutely. The Blackburn HLC3974 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 HLC3974?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Blackburn HLC3974 from ZenSupply?
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and
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