Thomas & Betts ADR11-32 Dual-R...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$154.41
$50.53
Thomas & Betts ADR11-32 Dual-Rated

Thomas & Betts ADR11-32 Dual-Rated Aluminum Electrical Connector 14 AWG to 1/0 Str with Tin Plating

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Model: ADR11-32
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$154.41
$50.53
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Thomas & Betts ADR11-32 Dual-Rated Aluminum Electrical Connector

Professional dual-rated electrical connection solution for aluminum and copper conductors

The Thomas & Betts ADR11-32 delivers reliable dual-rated performance for both aluminum and copper conductors from 14 AWG to 1/0 Str. This aluminum connector features tin plating for enhanced conductivity and corrosion resistance, with ALCUL three-conductor, two-hole mount design for secure installation. UL 486B tested and AL9CU rated, this connector meets professional electrical connection requirements with NEMA spacing at 1 inch centers.

Professional Features & Benefits

  • Dual-Rated Design: Accommodates both aluminum and copper conductors for versatile installation flexibility and compatibility across different wiring systems.
  • 14 AWG to 1/0 Str Range: Handles a wide conductor size range from 14 AWG minimum to 1/0 Str maximum for diverse electrical connection applications.
  • Aluminum Construction with Tin Plating: Provides excellent conductivity and corrosion resistance while maintaining lightweight durability for long-term performance.
  • UL 486B Tested & AL9CU Rated: Meets rigorous safety and performance standards ensuring reliable electrical connections in professional installations.
  • Easy Installation Design: Requires no special tools for installation, reducing labor time and simplifying field connections.
  • NEMA Standard Spacing: Features 1 inch center spacing for compatibility with standard electrical equipment and panel configurations.
  • Three-Conductor Two-Hole Mount: ALCUL style design provides secure mechanical connection and optimal electrical contact for multiple conductors.

Technical Specifications

  • Conductor Range Al Or Cu Maximum: 1/0 Str.
  • Conductor Range Al Or Cu Minimum: 14 AWG
  • D Inches: Nov-32
  • Department: Electrical
  • E Inches: 8-Mar
  • F Inches: 4-Jan
  • G Inches: 2 5/32
  • Height Inches: 8-Jul
  • I Inches: 45/64
  • Inner Package: 6
  • Length Inches: 2/29/32
  • Material: Aluminum
  • Outer Package: 60
  • Package Height: 5.75
  • Package Length: 15
  • Package Width: 8.25
  • Plating: Tin-Plated
  • Rohs Compliance: Yes
  • Style: ALCUL Three-Conductor, Two-Hole Mount
  • T B Sold In Uom: Each
  • T B Weight Per Uom: 22 lbs. per 100
  • Width Inches: 1/15/16

Professional Applications

  • Electrical Panel Connections
  • Industrial Control Systems
  • Commercial Building Wiring
  • Residential Electrical Installations
  • Equipment Grounding Applications
  • Multi-Conductor Junction Points
  • Maintenance and Retrofit Projects

Why Choose Thomas & Betts Quality?

Thomas & Betts delivers proven reliability with UL and CSA certifications, ensuring professional-grade performance in demanding electrical applications. The RoHS compliant design meets environmental standards while the UL 486B testing and AL9CU rating provide confidence in long-term electrical connection integrity and safety.

Manufacturer Resources

Product Specs

Conductor Range Al Or Cu Maximum:
1/0 Str.
Conductor Range Al Or Cu Minimum:
14 AWG
D Inches:
Nov-32
E Inches:
8-Mar
F Inches:
4-Jan
G Inches:
2 5/32
Height Inches:
8-Jul
I Inches:
45/64
Inner Package:
6
Length Inches:
2/29/32
Outer Package:
60
Package Height:
5.75
Package Length:
15
Package Width:
8.25
Plating:
Tin-Plated
Rohs Compliance:
Yes
T B Sold In Uom:
Each
T B Weight Per Uom:
22 lbs. per 100
Width Inches:
1/15/16
Department:
Electrical
Product Style:
ALCUL Three-Conductor, Two-Hole Mount
Product Material:
Aluminum
Product Type:
Mechanical Lug
Product Group:
Wire Connectors & Terminals
Product Subgroup:
Lugs & Terminals

Thomas & Betts ADR11-32 – Frequently Asked Questions

1) Can the Thomas & Betts ADR11-32 lug be used on aluminum conductors, or copper only?
Both. The ADR11-32 is dual-rated AL9CU, so it accepts aluminum or copper conductors in the same connector. The body is aluminum with tin plating, which is what lets it sit against copper without the galvanic issues a bare aluminum lug would create.
2) What wire sizes does the ADR11-32 connector take?
The range runs from 14 AWG at the small end up to 1/0 stranded at the large end, aluminum or copper. If your feeder is larger than 1/0, this is the wrong lug and you need a bigger mechanical connector.
3) How many conductors does the ADR11-32 terminate, and how does it mount?
It is an ALCUL three-conductor, two-hole mount lug, so you land three separate conductors in one body and bolt it down through two holes. That two-hole pattern resists rotation under torque better than a single-hole tongue, which matters when you are tightening set screws on 1/0.
4) Is the ADR11-32 UL tested and RoHS compliant for a spec'd commercial job?
It is UL 486B tested and AL9CU rated, with UL and CSA certification cited by Thomas & Betts, and it is RoHS compliant. UL 486B is the standard that covers wire connectors for use with aluminum conductors, which is the listing a specifier looks for on a dual-rated lug.
5) What is the closest dual-rated aluminum mechanical lug to the Thomas & Betts ADR11-32 if I need another brand?
The Burndy KA30U is the nearest match in kind: it is a Type KA-U aluminum mechanical lug that is dual-rated CU/AL, the same aluminum-body, dual-rated approach as the ADR11-32, which is an aluminum lug accepting both aluminum and copper conductors from 14 AWG up to 1/0 Str. The NSi 220T is also a dual-rated aluminum set-screw lug. The main thing to confirm before swapping is port count and mounting - the ADR11-32 is an ALCUL three-conductor, two-hole mount body, while the 220T is a two-port connector.
6) I only need to terminate a single copper conductor, not three - is there a simpler lug than the ADR11-32?
Yes. The ADR11-32 is an ALCUL three-conductor, two-hole mount body, so you are paying for three ports and two mounting holes you would not use. For one copper conductor, the Burndy CL501 Qiklug is a copper lay-in lug rated #14-4 AWG with a #10 stud hole, and the Burndy SCRULUG is an offset-tongue copper mechanical lug. Both are copper-bodied single-conductor devices rather than dual-rated aluminum, so use them only where the conductor is copper.
7) My conductor is larger than 1/0 - what should I use instead of the ADR11-32?
The ADR11-32 tops out at 1/0 Str on the aluminum or copper range, so a larger feeder is outside it. Step to a bigger-body aluminum dual-rated lug: NSi offers the 300T aluminum dual-rated set-screw lug and the 350T-2 two-port stacked aluminum alloy lug for larger terminations. Confirm the conductor size range and mounting hole on whichever you pick, since the ADR11-32's two-hole ALCUL pattern will not necessarily carry over.
8) Which of these lugs can I use on an aluminum feeder, and which are copper-only?
For aluminum conductors you need a dual-rated device. The Thomas & Betts ADR11-32 is dual-rated for aluminum or copper from 14 AWG to 1/0 Str, and the Burndy KA30U, NSi 220T, NSi 300T and NSi STL250-6 are all dual-rated as well. The Burndy CL501 Qiklug and the Burndy SCRULUG offset tongue are copper lugs, so keep those on copper terminations.
9) Will the ADR11-32 line up with the bolt pattern in standard panelboard gear?
The mounting uses NEMA standard spacing on 1 inch centers, which is the pattern common electrical equipment and panel pads are drilled to. Verify the pad on your specific enclosure, but 1 inch centers is the standard it was built to.
10) Do I need a crimp tool or die set to install the ADR11-32?
No. It is a mechanical set-screw style lug, not a compression connector, so no crimper, dies, or special tooling is required. All you need is the correct driver for the set screws and a torque value from the equipment or connector marking.
11) What is a comparable dual-rated aluminum mechanical lug if the ADR11-32 does not fit my application?
Burndy's KA-U series aluminum mechanical lug is also dual-rated CU/AL, and NSi's 220T is a dual-rated aluminum set-screw lug in a two-port configuration. Panduit's Pan-Lug LAMA series is a tin-plated aluminum mechanical lug in a single-barrel body. The main difference is port count: the ADR11-32 lands three conductors, so the single and two-port options are not drop-in replacements if you need all three terminations in one lug.
12) I need to tap off more than three conductors at a transformer. Is this the right lug?
No. The ADR11-32 tops out at three conductors. For a higher-count distribution point, look at a multi-port transformer lug such as the NSi STL series 6-port aluminum dual-rated lug, or a stacked two-port like the NSi 350T-2 if you need to double up in a tight pad space.
13) Can I use the ADR11-32 for an equipment grounding connection with mixed copper and aluminum grounds?
Yes, that is one of the listed applications, and the AL9CU dual rating is what permits copper and aluminum in the same connector. Keep every conductor within the 14 AWG to 1/0 stranded range and torque each set screw to the value marked on the connector or given in the equipment instructions.
14) I have to land six branch conductors in a panel - can I use the ADR11-32 or do I need a different connector?
The ADR11-32 is a three-conductor body, so six conductors means either two of them or a higher-port device. The NSi STL250-6 is a 6-port aluminum dual-rated transformer lug built for that kind of multi-tap landing. Both are dual-rated aluminum, so either works with aluminum or copper branch conductors; the difference is port count and the mounting arrangement, with the ADR11-32 using a two-hole ALCUL pattern on NEMA 1 inch centers.
15) Is the Panduit LAMA lug a drop-in substitute for the Thomas & Betts ADR11-32?
Not a drop-in. The Panduit Pan-Lug LAMA series is a tin-plated single-barrel aluminum mechanical lug, so it terminates one conductor per barrel, while the ADR11-32 is an ALCUL three-conductor, two-hole mount body. They share the tin-plated aluminum construction - the ADR11-32 is aluminum with tin plating - but the barrel count and mounting footprint differ, so the LAMA suits a single-conductor termination rather than a three-way junction point.
16) The existing lug lands on a single #10 stud - will the ADR11-32 bolt up?
No. The ADR11-32 uses a two-hole mount on NEMA 1 inch centers, so a single-stud pad will not take it. For a #10 stud the Burndy CL501 Qiklug is built for that, rated #14-4 AWG on a #10 stud, and the Burndy SCRULUG offset tongue lug is another single-tongue option. If the equipment pad genuinely has two holes at 1 inch centers, the ADR11-32 is the one matched to it.
17) Will the ADR11-32 hold up in a damp or outdoor-rated enclosure?
The aluminum body is tin plated, which is the finish used on mechanical lugs specifically to slow corrosion and keep contact resistance stable over time. That makes it suitable for the humid and industrial interiors described for it, including equipment grounding and junction points, but it does not make the connector itself weatherproof; it still belongs inside an enclosure rated for the location.
How fast can I get the Thomas & Betts ADR11-32 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 Thomas & Betts ADR11-32 come with a warranty?
Absolutely. The Thomas & Betts ADR11-32 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 Thomas & Betts ADR11-32?
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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