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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Group:
- Wire & Cable Management
- Product Type:
- AMT Connector
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809, CSA 6591
- Type2:
- Electrical taps
- Voltage Rating:
- 600 V
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Color:
- Black
- Product Material:
- Aluminum
Blackburn AMTSR350 – Frequently Asked Questions
1) What wire range does the Blackburn AMTSR350 splice connector accept?
The AMTSR350 is a 350-6 range-taking splice, so it lands conductors from 350 kcmil down to 6 AWG in either port. That range-taking design is why it works as a single part across a mixed feeder pull instead of needing a separate connector per conductor size.
2) Is the AMTSR350 splice already insulated, or do I have to tape and boot it?
It ships with a PVC insulating cover over the aluminum body, so you are not taping the splice or ordering a separate boot. The cover is black. You still need to seat the conductors fully and torque the set screws before closing it up.
3) What size hex driver do I need for the Blackburn AMTSR350 set screws?
5/16 inch hex. Carry a 5/16 hex key or socket bit on the truck for these; on a 350 kcmil splice you want a driver long enough to reach the screw through the insulating cover without deforming it.
4) What is the voltage rating on the AMTSR350 insulated splice?
Rated 600 V, which covers normal commercial and multi-family service and feeder work. It is not a medium-voltage splice, so anything above 600 V needs a different product entirely.
5) Is the Blackburn AMTSR350 UL listed for inspection sign-off?
It carries UL file E9809 and CSA 6591, so it satisfies both US and Canadian listing requirements on a 600 V splice. Institutional and government specs asking for a listed insulated connector are covered by those two file numbers.
6) Can I use the Blackburn AMTSR350 on both aluminum and copper conductors?
The body is aluminum, which is the standard AL/CU dual-rated splice construction for utility and service work. It is built for aluminum conductors and takes copper in the same ports. If your job spec calls out a copper-only tin-plated connector, that is a different part.
7) Is the AMTSR350 a splice or a tap connector?
It is a two-port splice used to join conductors end to end, and it is catalogued among electrical tap connectors because the same mechanical range-taking body serves both duties. If you need to pull a smaller branch off a run-through main without cutting it, look for a dedicated tap rather than this inline splice.
8) Is the Blackburn AMTSR350 made in the USA for Buy American requirements?
Country of origin is the United States, which matters on federal and municipal work carrying domestic-sourcing language. The manufacturer part number to put on the submittal is AMTSR350.
9) Are Blackburn AMTSR350 splices sold individually or by the box?
Sold each, so you can order exact quantity for the number of splices on the job rather than buying a carton. Useful for MRO stock where you want two or three on the shelf.
How fast can I get the Blackburn AMTSR350 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 AMTSR350 come with a warranty?
Absolutely. The Blackburn AMTSR350 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 AMTSR350?
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
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