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Manufacturer Resources
Product Specs
- Country Of Origin:
- India (IN)
- Product Group:
- Grounding & Bonding
- Product Type:
- Hot-Line Clamp Protected Thread
- Selling Unit Of Measure:
- each
- Tap Size:
- 3/0 to #6 ACSR AWG4/0 to #6 SOL AWG
- Type2:
- Electrical taps
- Voltage Rating:
- 35 kV
- Department:
- Electrical
- Product Subgroup:
- Ground Clamps
- Product Material:
- Bronze
Blackburn HLC3974P – Frequently Asked Questions
1) What conductor sizes does the Blackburn HLC3974P hot-line clamp accept?
The HLC3974P takes 3/0 to #6 ACSR and 4/0 to #6 solid AWG conductors. That range covers most primary distribution runs, so one clamp part number handles both the ACSR and solid copper taps on a typical pole. If your run is larger than 3/0 ACSR or smaller than #6, this is the wrong clamp.
2) What voltage is the Blackburn HLC3974P hot-line clamp rated for?
35 kV. That puts it on primary distribution circuits rather than secondary or service work, and it is the number to check against your line voltage before it goes on a hot conductor.
3) Is the Blackburn HLC3974P clamp body copper or aluminum?
Bronze, tin plated. The tin plating is what lets it land on aluminum conductors such as ACSR as well as copper without the bare copper-to-aluminum contact you would otherwise have to avoid.
4) What does the protected thread mean on the Blackburn HLC3974P hot-line clamp?
The HLC3974P is a protected-thread hot-line clamp, meaning the eye-screw thread is shielded from arc damage and weather so the clamp can still be opened and reset with a hot stick after it has been in service. Line crews pick this style over an unprotected clamp where the tap gets made and broken more than once.
5) Can I use the Blackburn HLC3974P as a ground clamp on a ground rod or water pipe?
No. Despite the grounding and bonding family it sits in, the HLC3974P is an electrical tap connector for overhead line conductors, not a rod or pipe ground clamp. For bonding to a ground rod or a water pipe you want a clamp sized to the rod or pipe diameter, not a conductor-to-conductor tap.
6) Do Blackburn HLC3974P hot-line clamps come in packs or individually?
Sold each, one clamp per unit. Order the count you need per tap point rather than by box quantity.
How fast can I get the Blackburn HLC3974P 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 HLC3974P come with a warranty?
Absolutely. The Blackburn HLC3974P 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 HLC3974P?
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installation tips, and troubleshooting. Contact Us
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