You may also like
CU TP TEE MAIN/TAP 750/750
Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Number Of Conductors:
- 3
- Product Group:
- Wire & Cable Management
- Product Type:
- Compression Splice Service Entrance Insulated
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Tin-Plated
- Type2:
- Wire or cable compression splice
- Department:
- Electrical
- Product Subgroup:
- Splices
- Product Size:
- Main 7.0 inches long Main Diameter 1.300 inch, Tap 3.000 inches long Tap Diameter 1.300 inch.
Blackburn 750 T 750 – Frequently Asked Questions
1) What conductor sizes does the Blackburn 750 T 750 tee connector take on the main and the tap?
The Blackburn 750 T 750 is a copper compression tee sized 750 on the main run and 750 on the tap, so both barrels accept 750 kcmil copper conductor. Main barrel is 7.0 inches long with a 1.300 inch diameter; the tap barrel is 3.000 inches long, also 1.300 inch diameter. It is a three-conductor connection: two main ends plus the tap.
2) Is the Blackburn 750 T 750 tee insulated, or do I have to tape or boot it?
Bare metal, no insulation on the connector itself. Insulation material is listed as none, so the installer has to insulate the finished joint (tape, insulating boot, or resin kit) to whatever the application and inspector require. The body is tin-plated copper for corrosion resistance, not an insulating coating.
3) Can I use this Blackburn tee connector on aluminum conductors?
No. The 750 T 750 is a copper connector, tin-plated, intended for copper conductor. For aluminum or a mixed copper-to-aluminum run you need a connector rated AL9CU or an aluminum-bodied compression tee instead.
4) What tool do I need to install a compression tee like the Blackburn 750 T 750?
It is a compression connection, not a set-screw or mechanical lug, so it is crimped with a hydraulic compression tool and the correct die for the barrel. With 1.300 inch barrel diameters on both the main and the tap, this is a large-die, high-tonnage crimp, not something you make with a hand crimper. Plan on multiple crimps along the 7.0 inch main barrel.
5) When should I use a compression tee instead of an H-tap or a mechanical split-bolt?
A compression tee like the 750 T 750 is the choice when you need a permanent tap off a continuous 750 kcmil main and want a one-piece, maintenance-free joint that will not loosen. Mechanical connectors and split bolts stay re-openable and need torque checks, which suits temporary or service-access points. Because this tee is crimped, the main stays straight through the 7.0 inch barrel and the tap leaves at the 3.000 inch barrel, so plan the cable routing before you crimp; once compressed it cannot be taken apart.
6) How much room do I need in the box or pull section for this splice?
Allow for a fitting that is 7.0 inches along the main with a 1.300 inch body, plus a 3.000 inch tap leg at the same diameter, and then add space for insulating the joint and for conductor bending radius on 750 kcmil cable. In practice it wants a generous pull box or gutter, not a tight junction box.
7) Is the Blackburn 750 T 750 sold individually or in a pack?
Sold each, as a single connector, under manufacturer part number 750 T 750. Order one per tap point.
8) Is this Blackburn compression tee made in the USA? Our project has domestic sourcing requirements.
Country of origin on the 750 T 750 copper compression tee is the United States. That is the sourcing detail to cite on Buy American style submittals; grade and listing claims should be taken from the manufacturer's own submittal sheet.
How fast can I get the Blackburn 750 T 750 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 750 T 750 come with a warranty?
Absolutely. The Blackburn 750 T 750 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 750 T 750?
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 750 T 750 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.