NSI Industries WRD389 - Dual Rated Wide Range Tap Connectors 4/0-3/0 AWG Dual rated wide range tap connectors are used for combinations of aluminum and aluminum-cooper conductors. Standard compression tools and dies install in all sizes. They have formable ribs to provide broader contact area. Fold-in tabs provide positive tab interlock as tool closes. Made from high strength aluminum alloy. All connectors are reversible. Rated 600 Volts.
NSI Industries

WRD389

UPC: 662381003393

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Overview

NSI Industries WRD389 Dual Rated Wide Range Tap Connectors are engineered for reliable, high-strength connections between aluminum and aluminum-copper conductors in 4/0 to 3/0 AWG ranges. These compression-style connectors are rated for 600V applications and are compatible with standard compression tools and dies, ensuring fast, consistent installation without specialized equipment. The WRD389 features formable ribs that expand the contact area for enhanced conductivity and mechanical stability, while fold-in tabs create a positive interlock during crimping to prevent conductor pull-out. Constructed from high-strength aluminum alloy, these connectors are fully reversible, reducing inventory needs and simplifying field applications. The WRD389 supports both solid and stranded conductors, making it ideal for utility, industrial, and commercial electrical systems requiring durable tap connections. Installation requires no special tools beyond standard compression dies (D62 for mechanical tools, D73 for hydraulic tools), and the connectors meet UL/CSA certification standards for 90°C temperature ratings. With a compact design and broad conductor compatibility, the WRD389 minimizes stocking requirements while delivering consistent performance in demanding environments.
  • Dual rated for aluminum and aluminum-copper conductors (4/0-3/0 AWG)
  • 600V rated with 90°C temperature rating (UL/CSA certified)
  • Formable ribs and fold-in tabs for enhanced contact and mechanical interlock
  • Compatible with standard compression tools and dies (D62/D73)
  • Reversible design reduces inventory requirements

Specifications

Application
Terminate, Splice, Tap Power Connectors
Color
Aluminum
Conductor Size
4/0 AWG - 1/0 AWG
Finish
Aluminum
Material
Aluminum
Special Features
A Groove- 4/0 3/0 (ACSR)-4/0 3/0 (STR) - B Groove-2/0 1/0 (ACSR)-3/0 2/0 (STR)
Tap Size
3/0 AWG - 1/0 AWG
Type
Wide Range Tap Connectors
Voltage Rating
600V
Warranty
1 Year
Package Dimensions (L x W x H)
2.415 IN x 2.342 IN x 0.866 IN
Package Dimensions (L x W x H)
6.1341 cm x 5.9487 cm x 21.9964 mm
Package Weight (Imperial)
6.000 L
Package Weight (Metric)
2.722 kg
500 - 1000MCM Dual Rated Stacking Adapters for Aluminum and Copper Compression Terminals DualRated Stacking Adapteris a type of copper compression connector that is produced from tin-plated pure aluminium for good conductivity and corrosion resistance. The adapter allows for thestacking of standard two-hole compression lugs.

SA500-1000

500 - 1000MCM Dual Rated Stacking Adapters for Aluminum and Copper Compression Terminals DualRated Stacking Adapteris a type of copper compression connector that is produced from tin-plated pure aluminium for good conductivity and corrosion resistance. The adapter allows for thestacking of standard two-hole compression lugs.
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60975

Aluminum Reducing Splice Connector for Copper Wire Size 400 kcmil, Aluminum Wire Size 600 kcmil, Tin Plated, Die Code 106H, Die Color Code Black
Aluminum splice, type SA, tin plated, 500 kcmil.

SA500-2

Aluminum splice, type SA, tin plated, 500 kcmil.

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Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

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