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AL TINPLT HOTLINE CLAMP 400-6
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:
- Aluminum
Blackburn HLC3974AP – Frequently Asked Questions
1) What conductor sizes does the Blackburn HLC3974AP hot-line clamp accept?
The HLC3974AP takes a tap range of 3/0 to #6 ACSR and 4/0 to #6 solid AWG. If your tap conductor falls outside that window, on either the large or small end, this is the wrong clamp and you need a different range in the HLC family.
2) What voltage is the Blackburn HLC3974AP hot-line clamp rated for?
Rated to 35 kV, so it covers typical distribution work at 15 kV, 25 kV and 35 kV classes. Do not put it on anything above 35 kV.
3) Is the HLC3974AP aluminum clamp safe to use on copper conductors?
The body is aluminum with a tin plating. Tin plating is what makes an aluminum clamp suitable for dual-rated use on both copper and aluminum conductors, since the tin keeps aluminum and copper from making direct contact and galvanically corroding.
4) What does the protected thread feature on this Blackburn hot-line clamp actually do?
It shields the eye-screw threads from arcing damage and weather during hot-stick work, so the clamp can be opened and reused after it has been energized. That is the difference between a protected-thread hot-line clamp like the HLC3974AP and a plain ground clamp, which is not built to be installed on a live line.
5) Should I use a hot-line clamp or a compression tap connector for this connection?
Use a hot-line clamp like the HLC3974AP when the tap has to be made or broken on an energized line with a hot stick, or when you want a connection you can remove later. Use a compression tap when the connection is permanent and will not be opened again. The HLC3974AP is built for electrical taps, not for a bonded ground rod connection.
6) Is the Blackburn HLC3974AP sold individually or in a box?
It ships as a single clamp, sold each. Line crews stocking a truck should order one per tap point.
7) What is the exact manufacturer part number and origin for this Blackburn hot-line clamp?
Manufacturer part number HLC3974AP, made by Blackburn, country of origin India. That MPN is what to quote when matching an existing utility or MRO spec.
How fast can I get the Blackburn HLC3974AP 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 HLC3974AP come with a warranty?
Absolutely. The Blackburn HLC3974AP 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 HLC3974AP?
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