ABB - Installation Products WR399 - Aluminum Wide Range H-Type Compression Connector, Main: 4/0 - 3/0 ACSR, 4/0 - 3/0 Str. Tap: 2/0 - 1 ACSR, 2/0 - 1/0 Str. 3/0 - 2/0 Sol. 2-3/16 inch
ABB - Installation Products

WR399

UPC: 783786100101


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Overview

The ABB WR399 is a high-strength aluminum H-type compression connector engineered for reliable electrical connections in overhead distribution systems. Designed specifically for ACSR (Aluminum Conductor Steel Reinforced) conductors, this wide-range connector accommodates main conductor sizes from 4/0 to 3/0 AWG and tap conductor sizes from 2/0 to 1 AWG, with additional compatibility for stranded and solid conductors in the ranges of 3/0 to 2/0 AWG. The connector measures 2-3/16 inches in length, ensuring secure compression and long-term mechanical integrity, which reduces the risk of loosening under vibration or thermal cycling. Manufactured by ABB Installation Products, a leader in electrical connection solutions, the WR399 is ideal for utility, industrial, and commercial applications where durable, low-resistance connections are critical. The compression design eliminates the need for soldering or complex tooling, streamlining installation while maintaining compliance with industry standards for electrical performance and mechanical strength. This connector is part of ABB’s WR series, known for its versatility and reliability in overhead distribution systems.
  • Compatible with 4/0–3/0 ACSR main conductors and 2/0–1 ACSR tap conductors
  • Supports stranded and solid conductors in specified ranges
  • 2-3/16 inch length for secure compression and mechanical stability
  • Aluminum construction for corrosion resistance and conductivity
  • Designed for overhead distribution and industrial applications

Specifications

Application
For Combinations of Aluminum to Aluminum and Aluminum to Copper Conductors
Connection
Compression
Environmental Conditions
All Seasons / Conditions
Housing Material
Aluminum
Housing Material
Aluminium
Insulation
None
Mounting
None
Number Of Conductors
2
Size
Length 2-3/16 inch
Special Features
Made of 1350 Aluminum Alloy for high strength and high conductivity. Standard Compression tools and dies install all sizes - no special tools needed. Field-proven ribbed design enables excellent connector/conductor contact without distorting the conductor's shape. Fold-in tabs provide tab interlock as tool closes. Prefilled with oxide inhibitor held captive in the rib/connection area
Standard
RUS Accepted. Complies with ANSI C119.4 Specifications
Temperature Rating, Maximum
194 F
Temperature Rating, Maximum
90 C
Temperature Rating, Minimum
194 F
Temperature Rating, Minimum
90 C
Type
H-Type Compression Tap Connector
Wire Size
Main: 4/0 to 3/0 ACSR or 4/0 to 3/0 STR AWG , Tap: 2/0 to #1 ACSR or 2/0 to 1/0 STR or 3/0 to 2/0 SOL AWG
Package Dimensions (L x W x H)
2.75 IN x 5.62 IN x 13.12 IN
Package Dimensions (L x W x H)
6.985 cm x 14.2748 cm x 33.3248 cm
Package Weight (Imperial)
0.1700 L
Package Weight (Metric)
0.0770 kg
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Frequently Asked Questions

What conductor sizes does the WR399 support?

The WR399 supports main conductors from 4/0 to 3/0 ACSR and tap conductors from 2/0 to 1 ACSR, including stranded and solid variants within those ranges.

What is the length of the WR399 connector?

The WR399 has a length of 2-3/16 inches, ensuring adequate coverage for compression and mechanical stability.

Is the WR399 suitable for solid conductors?

Yes, the WR399 accommodates solid conductors in the 3/0 to 2/0 range as specified in the catalog.

What material is the WR399 made from?

The WR399 is made from aluminum, providing corrosion resistance and good electrical conductivity.

Can the WR399 be used for overhead distribution?

Yes, the WR399 is designed for overhead distribution systems where reliable, low-resistance connections are required.

Frequently Asked Questions about ABB - Installation Products

What technical support does ABB - Installation Products offer?

ABB - Installation Products offers comprehensive technical support through a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services include emergency services, on-site support, remote diagnostics, installation assistance, equipment assessments, and repair coordination. Customers can also access technical resources via email at [email protected].

What are the main product lines offered by ABB - Installation Products?

ABB - Installation Products offers a comprehensive range of electrical distribution and protection solutions, including panelboards like ReliaGear® and ProLine, circuit monitoring systems, softstarters, and modular bus bar systems. Key product lines cover low voltage applications with specialized offerings such as the SMISSLINE TP flexible power distribution bus system, Ekip UP protection and metering relays, and enclosed/open softstarters for industrial and commercial sectors.

What are the key features of ABB - Installation Products products?

ABB - Installation Products feature advanced, user-friendly design elements optimized for industrial applications. Key features include 2-in-1 Push-in Spring connection technology allowing ferruled and rigid cable connections, tool-free mounting, robust vibration and shock-proof design, and front-accessible terminals. The products deliver high connection capacities up to 18.5 kW, support motor starting solutions, provide short-circuit fuseless protection to 100 kA, and enable faster, more intuitive installation with one-hand mounting and automated wiring capabilities.

What environmental ratings do ABB - Installation Products products have?

ABB - Installation Products offer robust environmental ratings across multiple standards, including IP54 to IP66 protection levels and NEMA Type 1 to Type 4X enclosures. These ratings ensure superior protection against dust, water, and corrosion for both indoor and outdoor industrial applications, with certifications that meet stringent environmental performance requirements.

What accessories are available for ABB - Installation Products products?

ABB - Installation Products offers a comprehensive range of accessories designed to enhance functionality and connectivity across industrial control systems. Key accessories include auxiliary contact blocks, signaling contacts, shunt trips, undervoltage releases, electronic timers, interlocks, interface relays, terminal blocks, and connection accessories. These accessories are compatible with SMISSLINE TP plug-in distribution systems and Unifix AD busbar systems, allowing for easy installation and configuration of manual motor starters, circuit breakers, and other electrical components.

What is ABB - Installation Products's warranty policy?

ABB - Installation Products offers a standard 1-year factory warranty for most installation products, with options to extend warranty coverage up to 5 years for specific product lines like low voltage circuit breakers. Extended warranty requires online registration through ABB's Extended Warranty Tool, which verifies product application and provides additional coverage for manufacturing defects and factory-mounted accessories.

What industries and applications are ABB - Installation Products products used for?

ABB - Installation Products serve critical electrical infrastructure needs across diverse industries including Energy, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their products cover essential applications such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems, engineered for high-reliability environments with a strong emphasis on safety, efficiency, and sustainability.

What communication protocols do ABB - Installation Products products support?

ABB - Installation Products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with high-speed data transmission capabilities up to 100 Mbps and support for various network topologies.

How are ABB - Installation Products products typically installed?

ABB - Installation Products are installed through a professional, systematic process emphasizing fast, intuitive wiring and tool-free mounting. Typical installation involves precise equipment verification, secure electrical connections, and comprehensive testing, including foundation frame assessment, busbar and cable connections, earthing system establishment, and thorough pre-commissioning functional tests to ensure optimal performance and reliability.

What certifications and standards do ABB - Installation Products products comply with?

ABB - Installation Products products meet rigorous international certifications including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products comply with critical standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, ensuring high performance and reliability across industrial installation applications.