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AL TEE MAIN/TAP 500/500
Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- United States (US)
- Product Group:
- Wire & Cable Management
- Product Type:
- Tee, Compression
- Selling Unit Of Measure:
- each
- Standards:
- ANSI C119.4
- Type2:
- Wire connectors
- Wire Size:
- 500 kcmil
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- Length 8 inches, Tap 3-1/8 inch
Blackburn AT 500-500 – Frequently Asked Questions
1) What conductor sizes does the Blackburn AT 500-500 tee connector take on the main and the tap?
The AT 500-500 is built for 500 kcmil on both the run (main) and the tap, which is what the 500-500 in the part number refers to. It is a single-size compression tee, so it will not accommodate a smaller tap conductor. If your tap is a different size than the run, you need the matching AT main/tap combination instead.
2) Does the Blackburn AT 500-500 tee meet ANSI C119.4 for underground and above-grade connectors?
Yes. The AT 500-500 is listed to ANSI C119.4, the standard covering electric connectors for use between aluminum or copper conductors. That is the reference a utility or institutional spec usually calls out for compression tap connectors, so it is the one to cite on a submittal.
3) How much room do I need in the pull box or handhole for a 500 kcmil compression tee?
Plan the space around 8 inches of length on the run with a 3-1/8 inch tap leg coming off it, before you add insulating cover or tape build-up and bending radius for 500 kcmil conductor. In a tight handhole that length is usually the deciding factor, so lay the connector against the run before you cut.
4) Is this a bolted tap connector or does it need a hydraulic crimping tool?
Compression, not bolted. The AT 500-500 is installed with a hydraulic compression tool and the die specified by the manufacturer for that connector, with multiple crimps along the barrel on both the run and the tap. If your crew is not set up for 500 kcmil compression crimping, a bolted mechanical tap connector is the alternative that installs with a wrench.
5) Is the Blackburn AT 500-500 an aluminum connector, and can I use it on copper conductors?
It is an aluminum-bodied compression tee, per the AL TEE MAIN/TAP 500/500 description. Aluminum compression connectors of this type are normally dual-rated AL9CU for aluminum or copper, but the rating you can rely on for an individual part is what is stamped on the body and printed in the manufacturer's installation sheet. What is on record here is the aluminum body, 500 kcmil main and tap, and compliance with ANSI C119.4.
6) Is the Blackburn AT 500-500 made in the USA for Buy American projects?
Country of origin on the AT 500-500 compression tee is the United States, which is what federal, municipal, and utility jobs with domestic-content language will ask you to document.
7) When should I use a compression tee instead of an H-tap or a split-bolt on a 500 kcmil run?
A tee like the AT 500-500 is for taking a full 500 kcmil tap off a 500 kcmil run without cutting the run open at a terminal, and the crimped joint stays tight through thermal cycling in a buried or direct-sun location, which is where split-bolts tend to loosen. H-taps and C-taps do the same job but wrap around both conductors rather than sleeving each one, so a tee gives you a cleaner straight-through run when conduit alignment matters. Split-bolts remain the choice when the connection has to be re-openable.
8) Is the Blackburn AT 500-500 sold as a single connector or in a box?
It is sold each, one connector per unit, so order the exact count of taps you are making. There is a single configuration, model AT 500-500, so there is nothing to specify beyond quantity.
How fast can I get the Blackburn AT 500-500 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 AT 500-500 come with a warranty?
Absolutely. The Blackburn AT 500-500 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 AT 500-500?
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