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COMP STIRRUP W/CONTAX 477-4/0 ASCR
Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Number Of Conductors:
- 2
- Product Group:
- Wire & Cable Management
- Product Type:
- Stirrup Connector
- Selling Unit Of Measure:
- each
- Type2:
- Wire or cable compression splice
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- 11 inches x 3-11/16 inches high
- Product Material:
- Aluminum with Tin-plated Copper Bail
Blackburn QCN50 – Frequently Asked Questions
1) What conductor sizes does the Blackburn QCN50 compression stirrup fit?
The QCN50 is built for 477 ACSR run conductor down to 4/0 ACSR, per the product description. It is a compression connection, so the barrel is sized to that range and it is not adjustable outside it. If your run conductor falls outside 477 to 4/0 ACSR, you need a different stirrup catalog number.
2) What is the QCN50 stirrup made of, and will it corrode against copper hot line clamps?
The body is aluminum with a tin-plated copper bail. The tin plating on the bail is what lets a copper-jawed hot line clamp land on it without direct dissimilar-metal contact, and the aluminum body is intended for the ACSR run conductor. That bail is the wear point that takes repeated clamp-on, clamp-off work.
3) Why use a stirrup connector instead of clamping a hot line clamp straight to the conductor?
A stirrup gives you a dedicated, replaceable tap point. The QCN50 is compressed once onto the run conductor, and every subsequent tap lands on its tin-plated copper bail instead of on the line itself. That keeps clamp jaws from scoring and annealing the ACSR after repeated connections. It handles two conductors: the run it compresses to and the tap it carries.
4) How big is the Blackburn QCN50 stirrup connector?
It measures 11 inches by 3-11/16 inches high. Worth checking against your phase spacing and the working clearance you have before you compress it onto the line, since the bail stands off the conductor.
5) Is the QCN50 insulated?
No. It is a bare connector with no insulation, so it is intended for overhead line work where the connection is covered by cover-up or left bare, not for anywhere an insulated body is required.
6) Is the Blackburn QCN50 sold individually or in a box?
Each. One QCN50 stirrup per unit, so order one per tap point you are setting up.
7) Where is the Blackburn QCN50 manufactured?
Mexico. Useful if your utility or agency spec carries country-of-origin reporting requirements on line hardware.
How fast can I get the Blackburn QCN50 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 QCN50 come with a warranty?
Absolutely. The Blackburn QCN50 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 QCN50?
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 QCN50 from ZenSupply?
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and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.