ABB - Installation Products ATT 350-350 - Aluminum Tapered Tee, Main 336.4-350 kcmil AL-CU, 266.8 (26/7), 336.4 (18/1), Tap 336.4-350 kcmil AL-CU, 266.8 (26/7), 336.4 (18/1). Main 3-1/8 inch, Taps 7 inch with Dimple at 3-1/2 inch. Dies 1 1/8-1, 96, 299, 13A, 655. Oxide Inhibitor. Brown Caps.
ABB - Installation Products

ATT 350-350

UPC: 783786697694


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Overview

The ABB ATT 350-350 is an Aluminum Tapered Tee connector designed for reliable electrical connections in utility and industrial applications. This tee connector is rated for main conductor sizes ranging from 336.4 to 350 kcmil in both AL-CU (Aluminum-Copper) configurations. It also accommodates tap conductor sizes of 266.8 kcmil (26/7 stranding) and 336.4 kcmil (18/1 stranding), also in AL-CU. The main body of the tee measures 3-1/8 inches, with taps extending 7 inches. A key feature is the integrated dimple located at 3-1/2 inches on the tap, which aids in proper conductor seating and connection integrity. The ATT 350-350 is supplied with oxide inhibitor to prevent corrosion and ensure long-term conductivity. Brown caps are included for terminal protection. This connector is compatible with dies 1 1/8-1, 96, 299, 13A, and 655, providing flexibility in tooling selection. Manufactured by ABB - Installation Products, this tee connector is built for robust performance in electrical distribution systems.
  • Main conductor size: 336.4-350 kcmil AL-CU
  • Tap conductor size: 266.8 (26/7) kcmil AL-CU, 336.4 (18/1) kcmil AL-CU
  • Main body dimension: 3-1/8 inch
  • Tap dimension: 7 inch with dimple at 3-1/2 inch
  • Includes oxide inhibitor and brown caps

Specifications

Application
Tapered ends enable use in High-Voltage Applications up to 69kV
Color
Brown
Connection
Compression
Housing Material
Aluminum
Housing Material
Aluminium
Material
Aluminum
Series
ATT
Size
Length 6-5/8 inches, Tap 3-1/4 inch
Size
Main: 336.4-350 kcmil AL-CU, Tap: 336.4-350 kcmil AL-CU
Special Features
Made from Aluminum which provides high strength and high conductivity. Dual-rated. Use with Aluminum and Copper conductors. Prefilled with oxide inhibitor to prevent oxidation and keep out moisture. All Tees marked with conductor sizes and die reference for easy identification
Standard
ANSI C119.4
Type
Tee, Compression, Tapered
Wire Size
350 kcmil
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
0.5800 L
Package Weight (Metric)
0.2630 kg

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.