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ABB - Installation Products ADR21AR - Type ADR-ALCUL Anti-Rotational Single-Conductor, One-Hole Mount, Conductor Range Max 2/0 Str, Min 14 AWG, 1/4 Inch Bolt Hole, Tin Plated

ABB Installation Products ADR21AR Type ADR-ALCUL Anti-Rotational Single-Conductor, One-Hole Mount, Conductor Range Max 2/0…

UPC: 783786149834


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Minimum Qty: 250

Multiplier: 250

*Contact for lower quantities*

Call (262) 252-1600 or email [email protected] for pricing and availability.

Overview

The ABB ADR21AR Type Anti-Rotational Single-Conductor Lug (SKU ADR21AR) is a precision-engineered mechanical connector designed for secure, vibration-resistant electrical terminations in industrial power distribution systems. This one-hole mount lug accommodates conductor sizes from 14 AWG to 2/0 AWG (stranded or solid), making it ideal for applications requiring reliable single-conductor connections. The lug features a 1/4-inch bolt hole for standard mounting compatibility with busbars, switchgear, and control panels. Constructed from tin-plated copper alloy, the ADR21AR provides excellent electrical conductivity while resisting corrosion in harsh environments. Its anti-rotational design prevents conductor spin-out during installation and under mechanical stress, ensuring long-term connection integrity. The lug's compact dimensions (1¾" length x 1" width x 13/16" height) allow for efficient use of panel space while maintaining NEMA spacing standards. Typical applications include motor control centers, panelboards, industrial machinery, and power distribution equipment where single-conductor terminations are required. The ADR-ALCÜL series from ABB Installation Products is trusted for its durable construction and consistent performance in critical electrical infrastructure. With a maximum conductor capacity of 2/0 AWG, this lug supports both aluminum and copper conductors, offering versatility across diverse industrial environments. The tin plating provides a protective barrier against oxidation, reducing maintenance requirements and extending service life in demanding conditions.
  • Accommodates conductor range: 14 AWG to 2/0 AWG (stranded or solid)
  • 1/4" bolt hole for standard mounting compatibility
  • Anti-rotational design prevents conductor spin-out under vibration
  • Tin-plated copper alloy construction for corrosion resistance
  • Compact dimensions: 1¾" L x 1" W x 13/16" H

Specifications

Finish
Tinned
Material
Aluminum
Mounting Hole Spacing
1/4 in
Number of Conductors
1
Number of Mounting Holes
1
Special Features
Unique bottom rib keeps the conductor from turning. Eliminates the need for excessive torque, which can damage large conductors
Standard
UL E9809
Type
Anti-Rotational Mechanical Connector
Package Dimensions (L x W x H)
4.2 IN x 3.1 IN x 2.8 IN
Package Dimensions (L x W x H)
10.668 cm x 7.874 cm x 7.112 cm
Package Weight (Imperial)
0.0300 L
Package Weight (Metric)
0.0140 kg
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TS350-2

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The PCSB4-3S-12Y Multi-Tap Mechanical Lug has a flexible design that can be used as a tap, splice, or dead-end Lug. Made from high strength, extruded aluminum alloy to provide premium electrical and mechanical performance. Insulated with clear PVC to eliminate the need for taping and allow for visual inspection of the complete conductor insertion. UL Listed and CSA Certified.

PCSB4-3S-12Y

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ADR35-21AR

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ALCUL Aluminum Extruded Lug, Dual Rated Connector Copper and Aluminum, 90 Degrees Celsius, Single Connector, 1/2 Inch Bolt Hole Mount, Conductor Range 350 kcmil-6

ADR352

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ADR60AR

Type ADR-ALCUL Anti-Rotational Single-Conductor, One-Hole Mount, Conductor Range Max 600 MCM, Min 2 AWG, 1/2 Inch Bolt Hole, Tin Plated
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ADR60-21AR

Type ADR-ALCUL Anti-Rotational Two-Conductor, One-Hole Mount, Conductor Range Max 600 MCM, Min 2 AWG, 1/2 Inch Bolt Hole, Tin Plated
Transformer Lug Kits - Mechanical For KVA Size 100-167 10, 150-300 30 Aluminum Wire Range 6-250, 350-800

622ML-SK3

Transformer Lug Kits - Mechanical For KVA Size 100-167 10, 150-300 30 Aluminum Wire Range 6-250, 350-800

How to Install Blackburn Aluminum Dual Rated Connectors

This guide provides step-by-step instructions for safely installing Blackburn Aluminum Dual Rated Connectors with aluminum or copper conductors, including preparation, insertion, and proper torque application.

Estimated time: 30m

Tools needed:

Wire strippers, Wire brush, Torque wrench

Supplies needed:

Blackburn Contax Type CT or Weaver Type CP oxide inhibiting compound, Aluminum or Copper Conductors, Mounting hardware, Flat and Belleville washers

  1. De-energize the System

    Before beginning any installation, ensure that the electrical system is completely de-energized to prevent electric shock or injury. Verify with appropriate testing equipment.

  2. Verify Conductor and Connector Compatibility

    Check the conductor size marked on the connector to confirm it is the correct connector for the specific conductor size you are using.

  3. Strip Conductor Insulation

    Carefully strip the conductor insulation to the length of the connector barrel, avoiding any damage to the conductor strands. Refer to Figure 1 for visual guidance on strip length.

  4. Prepare and Insert Conductor

    Wire brush the conductor thoroughly. If using an aluminum conductor, apply Blackburn® Contax® Type CT or Weaver Type CP oxide inhibiting compound. Fully insert the prepared conductor into the connector barrel. Wipe off any excess oxide inhibitor. Refer to Figure 2 and 3.

  5. Tighten Connector Setscrew

    Apply the recommended tightening torque to the setscrew in accordance with TABLE 1. The connector has one tightening torque range regardless of the conductor size it accommodates. Refer to Figure 4 for setscrew location.

  6. Apply Oxide Inhibitor to Flat Contact Surface

    Prior to mounting the connector, apply Blackburn® Contax® Type CT or Weaver Type CP oxide inhibiting compound to the flat contact surface of the connector.

  7. Torque Mounting Hardware

    Torque the mounting hardware to the values specified in TABLE 2. For best installation practice, use flat and Belleville washers in conjunction with the mounting hardware, although the connectors will perform satisfactorily without them. Refer to Figure 4.

Frequently Asked Questions about ABB - Installation Products

How are Thomas and Betts products typically installed?

Thomas and Betts products are installed using a variety of methods tailored to specific applications, including the use of flexible cords and cable fittings, non-metallic cable glands, and armored cable fittings. Proper selection of fittings is crucial to match the cable type and installation environment, ensuring durability and preventing physical damage. Tools such as the Blackburn® Comfort Crimp® and HEX-FLEX® systems enhance installation efficiency and reliability, reducing labor time and ensuring secure connections.

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Thomas and Betts offers a comprehensive range of accessories for their products, including various cord and cable fittings, non-metallic cable glands, service entrance cable fittings, and armored cable fittings. Their accessories are designed to enhance installation efficiency and ensure compatibility with different cable types and environmental conditions, providing reliable connections for a wide array of applications.

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Thomas and Betts products are known for their innovative designs, high performance, and compliance with industry standards such as the National Electrical Code and Underwriters' Laboratories. They offer a comprehensive range of rugged and reliable electrical fittings, including liquidtight and dust-tight connections, which enhance installation efficiency and reduce overall project costs. Their products are engineered for durability in harsh environments, ensuring long-term reliability and lower installed costs.

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What are the main product lines offered by Ocal?

Ocal offers a comprehensive range of corrosion-resistant conduit systems, including PVC-coated conduit and fittings, conduit bodies, hazardous location fittings, and strut accessories. Their products are designed to provide superior corrosion protection, featuring a hot-dipped galvanizing process and UL listed Type 4X PVC-coated conduit bodies, ensuring durability in the most demanding environments.