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FIRE ON ALUM. STIRRUP CONN.3/0,4/0
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Environmental Conditions:
- Outdoor Use.
- Product Group:
- Wire Connectors & Terminals
- Product Type:
- Compression Connector with Stirrup
- Selling Unit Of Measure:
- each
- Standards:
- RUS Accepted
- Surface Finishing:
- Bare Wedge, Tin-Plated Stirrup
- Tap Size:
- 1/0 AWG
- Temperature Range:
- 90 °C
- Type2:
- Electrical taps
- Department:
- Electrical
- Product Subgroup:
- Wire Connectors
- Product Size:
- 2 inch long Wedge, 1.636 inch long C-Body, 4.525 inch wide Stirrup
- Product Material:
- Aluminum Wedge, Copper Bail
Blackburn PT-4007-S10 – Frequently Asked Questions
1) What conductor sizes does the Blackburn PT-4007-S10 stirrup connector fit?
The PT-4007-S10 is a fired-on aluminum stirrup connector for 3/0 and 4/0 run conductor, with a 1/0 AWG tap size on the stirrup. If your main run is smaller than 3/0 or larger than 4/0, you need a different catalog number in the PT series.
2) Can an aluminum wedge connector with a copper stirrup be used on an aluminum overhead run without a dissimilar metal problem?
Yes. The wedge and C-body are aluminum so they contact the aluminum run conductor directly, and the copper bail stirrup is tin plated, which is what keeps the copper-to-aluminum interface from becoming a galvanic issue at the connection point.
3) Is this stirrup connector rated for outdoor overhead line use?
Yes, it is built for outdoor use and rated to 90 degrees C, which covers overhead secondary and service connections. It is also RUS Accepted, which matters if you are working on a rural utility or co-op system that specifies RUS material.
4) What is the physical size of the Blackburn PT-4007-S10 wedge connector and stirrup?
The wedge is 2 inches long, the C-body is 1.636 inches long, and the stirrup measures 4.525 inches wide. Check the stirrup width against your hot stick clamp or the jaw opening on the clamp you plan to land on it before you fire it on.
5) Why use a fired-on stirrup connector instead of clamping a hot line clamp directly to the run conductor?
A stirrup gives you a permanent, dedicated tin-plated copper bail to hook the hot line clamp onto, so repeated connections and disconnections wear the stirrup instead of chewing up the 3/0 or 4/0 aluminum run. The wedge is fired on once and stays there. If you never need a repeated tap point, a straight tap connector is simpler.
6) Is the PT-4007-S10 sold individually or in a box?
It is sold each, so quantity one gets you one connector. Order one per tap point you are installing, and remember a fired-on wedge is single use, so carry spares if you are building out multiple spans.
7) Is the Blackburn PT-4007-S10 made in the USA for projects with domestic sourcing requirements?
Country of origin is the United States, which is what utility and public-works buyers with Buy American or domestic-content language in the spec need on record for this connector.
How fast can I get the Blackburn PT-4007-S10 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 PT-4007-S10 come with a warranty?
Absolutely. The Blackburn PT-4007-S10 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 PT-4007-S10?
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 PT-4007-S10 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
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every order.
Our team is always ready to help you choose the right product for your project.