ABB - Installation Products UT 750-31 R - Flood Seal Aluminum Transformer Mechanical Connector for 1 Inch Stud 1-14 UNS-2B Left Hand Thread, 3 Towers with 2-Holes each (1/0-750 MCM) with Rockets, also includes (1) Adapter, (1) Black Cap, (1) 1-14 Steel Jam Nut, (3) Insulating Rockets, (1) EPDM Stud Cover, (6) Screws, Grease and Instuction Sheet. 7.11 inch wide x 6.275 inch tall. Gray PVC Coating. Stud Connector Section Welded to Towers.
ABB - Installation Products

UT 750-31 R

UPC: 783786755943


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Overview

The ABB UT 750-31 R Flood Seal Aluminum Transformer Mechanical Connector is a high-current, stud-mounted connection solution designed for transformer applications requiring reliable, weatherproof terminations. This connector supports 1 inch studs with 1-14 UNS-2B left-hand threads and accommodates 1/0 to 750 MCM conductors, making it ideal for medium to high-power transformer installations. The unit features three welded towers, each equipped with two mounting holes for secure attachment. The design includes three insulating rockets, one EPDM stud cover, and a black cap for environmental protection. Supplied with one 1-14 steel jam nut, six screws, and grease, the connector ensures a complete, ready-to-install solution. The gray PVC coating provides corrosion resistance and additional insulation, while the welded tower-to-stud connection ensures mechanical integrity. Dimensions are 7.11 inches wide by 6.275 inches tall. This connector is part of the UT 750 series, optimized for transformer secondary connections where durable, high-amperage terminations are required. Typical applications include utility transformers, pad-mounted transformers, and substation equipment where left-hand threaded studs are standard. The inclusion of insulating rockets and EPDM cover enhances safety and reduces the risk of moisture ingress, critical in outdoor or harsh environments. The left-hand thread design prevents loosening under vibration, a common issue in transformer installations. The connector is manufactured by ABB Installation Products, a leader in electrical connection solutions.
  • Supports 1/0 to 750 MCM conductors with 1" stud, 1-14 UNS-2B left-hand thread
  • Three welded towers with two mounting holes each for secure attachment
  • Includes insulating rockets, EPDM stud cover, black cap, jam nut, screws, and grease
  • Gray PVC coating for corrosion resistance and additional insulation
  • 7.11" wide x 6.275" tall; part of ABB UT 750 series for transformer applications

Specifications

Conductor Range
1/0 to 750 kcmil
Connection
Mechanical
Finish
Bare
Insulation
True
Material
Aluminum
Size
7.11 inch wide x 6.275 inch tall
Type
Transformer Connector
Width
7.11 in
Width
180.594 mm
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)
1.0000 L
Package Weight (Metric)
0.4540 kg
Submersible Transformer Connector, Aluminum Bus connector, 1/0 - 750 kcmil, Aluminum and Copper, Stud Size 1 inch, Eight Connector, Insulating Rockets.

FTUH 750-44-1 AWR

Submersible Transformer Connector, Aluminum Bus connector, 1/0 - 750 kcmil, Aluminum and Copper, Stud Size 1 inch, Eight Connector, Insulating Rockets.

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.