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
Dual Rated Wide Range Tap Connectors 4-6 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.

WRD139

Dual Rated Wide Range Tap Connectors 4-6 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.
Dual Rated Wide Range Tap Connectors 3/0-3/0 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.

WRD299

Dual Rated Wide Range Tap Connectors 3/0-3/0 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.
Cast Aluminum Meter Socket Lug 1 AWG - 1/2 Bolt Made of dead-soft EC grade aluminum. 840 common dies- one die installs on all sizes. For aluminum or copper conductors. Pre-filled with oxide inhibitor. Installing dies (color red): .840, 18, 324, TX, 76, 11A, 249.

CAL1-48

Cast Aluminum Meter Socket Lug 1 AWG - 1/2 Bolt Made of dead-soft EC grade aluminum. 840 common dies- one die installs on all sizes. For aluminum or copper conductors. Pre-filled with oxide inhibitor. Installing dies (color red): .840, 18, 324, TX, 76, 11A, 249.
Double-Hole Narrow Aluminum Compression Lug, 500 MCM, 1/2†Mounts

AL500N-NT

Double-Hole Narrow Aluminum Compression Lug, 500 MCM, 1/2†Mounts

Frequently Asked Questions about NSI Industries

What technical support does NSi Industries offer?

NSi Industries offers dedicated technical support through their toll-free technical support line at 888.500.4598. They are committed to customer satisfaction and promise to make every reasonable effort to remedy any product or service issues. Additionally, customers can contact their customer service team at 800.321.5847 or email [email protected] for further technical assistance.

What are the key features of NSi Industries products?

NSi Industries products feature exceptional versatility, reliability, and safety across multiple industrial automation categories. Key features include insulation piercing connectors with no wire stripping required, watertight and corrosion-free designs, wide wire range compatibility (from #14 AWG to 750 MCM), and the ability to install on energized conductors. Their product lines like Easy-Tap™ Connectors and TORK® Digital Timers demonstrate advanced capabilities such as turbo spacers, double shear-head bolts, astronomic scheduling, and enhanced switching technologies.

What environmental ratings do NSi Industries products have?

NSi Industries enclosures feature robust environmental ratings, including IEC 60529 IP66 certification, NEMA Type 1, 2, 3, 4, 4X, 12, and 13 ratings, and UL/CSA standards. Their products are designed for both indoor and outdoor applications, with protection against dust, water, corrosion, and extreme temperatures ranging from -40°F to 266°F.

How are NSi Industries products typically installed?

NSi Industries products are typically installed using detailed mechanical and digital wiring diagrams that specify precise connection methods for various voltage configurations (120V, 208V, 240V, 277V, 480V). Installation involves carefully following product-specific wiring schematics, which include clear terminal block connections, ground wire specifications, and phase alignment requirements. Professional electricians and technicians should reference the specific product's wiring diagram to ensure correct installation and electrical compliance.

What industries and applications are NSi Industries products used for?

NSi Industries provides electrical and automation products for diverse industrial applications, including lighting control, electrical enclosures, wire management, connectors, and sensor technologies. Their product lines serve commercial, industrial, and infrastructure markets with solutions for electrical infrastructure, control systems, and safety-critical environments.

What are the main product lines offered by NSi Industries?

NSi Industries offers a comprehensive range of industrial products including TORK® Photocontrols, Polaris™ Lighting Controls, Easy-Twist™ Grounding Solutions, Miniterms, Cable Ties, Connectors, Enclosures, Occupancy Sensors, and Wire Management systems. Their product lines span electrical components, control devices, and industrial automation accessories designed for diverse applications in commercial and industrial settings.

What accessories are available for NSi Industries products?

NSi Industries offers a range of accessories for their product lines, including photocontrol accessories like replacement caps, mounting brackets, and receptacles. Specific accessories include shorting caps, open caps, 3-pin and 7-pin receptacles, and utility mounting brackets for conduit photocontrols. For specialized applications, NSi recommends contacting their customer service team to discuss custom accessory needs.