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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 AMTTC4 – Frequently Asked Questions
1) What wire sizes does the Blackburn AMTTC4 splice connector accept?
The AMTTC4 is a two-port offset splice rated for conductors from 4 AWG down to 14 AWG. Both ports cover that same range, so you can splice a 4 AWG run to a smaller tap conductor within the range without a separate reducer.
2) Is the Blackburn AMTTC4 rated for 600 volt circuits?
Yes, it carries a 600 V rating, which covers standard commercial branch circuit and feeder work. It is also built to UL E9809 and CSA 6591, so it is acceptable on both US and Canadian jobs.
3) Can the AMTTC4 splice be used on aluminum conductors, or copper only?
The connector body is aluminum, which is what lets a mechanical tap of this style handle aluminum as well as copper conductors in the 4 to 14 AWG range. Use an appropriate joint compound on aluminum terminations per your installation practice.
4) Does the Blackburn AMTTC4 come with insulation, or do I have to tape the splice?
It ships with a PVC insulating cover over the connector, so no separate taping or heat shrink is needed to insulate the body once the conductors are torqued in. The cover is black.
5) What does the offset design on the AMTTC4 splice actually do for me in a box or gutter?
The two ports are offset rather than in line, so the conductors enter on staggered axes. That keeps the splice compact in a crowded junction box or wireway and lets you join conductors that are not running dead in line with each other, which is common when tapping off a feeder in a gutter.
6) Do I need a crimp tool for the Blackburn AMTTC4, or is it a screw type connector?
This is a mechanical tap style connector, not a compression fitting, so it is made up with a hex or screwdriver on the set screws rather than a crimp die. That makes it re-enterable for troubleshooting and practical for field splices where you do not want to haul a crimper.
7) Is the AMTTC4 sold individually or in a bag of connectors?
It is sold each, so quantity one gets you one two-port splice. Order one per splice point on the job rather than assuming a multi-pack.
8) Is the Blackburn AMTTC4 made in the USA?
Country of origin on the AMTTC4 is the United States, which matters if you are on a government, federal, or Buy American funded project with domestic sourcing language in the spec.
How fast can I get the Blackburn AMTTC4 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 AMTTC4 come with a warranty?
Absolutely. The Blackburn AMTTC4 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 AMTTC4?
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 AMTTC4 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.