Mechanical terminal lug · 350 kcmil to 6 AWG · 3 conductor · 2-hole aluminium body · ILSCO T3A2-350N

What this product is for

The ILSCO T3A2-350N is a dual-rated mechanical terminal lug for terminating up to 3 conductors in the 350 kcmil to 6 AWG range. It is used where a bolted lug is needed for panelboards, switchgear, distribution equipment, and other power terminations.

Use for

Use for aluminium or copper conductors, multi-conductor terminations, and equipment connections that require a 2-hole lug pattern with 1/2 in bolts and 1-3/4 in (44.5 mm) hole spacing. Suitable for commercial and industrial electrical work where a mechanical lug is preferred for field termination and serviceability.

Avoid for

Avoid where the equipment requires a different hole spacing, stud size, conductor range, or a compression lug instead of a mechanical lug. Do not use outside the listed conductor range or in applications that require a sealed or insulated connector body.

Best for

Best for electricians and contractors needing a 3-conductor lug with a broad wire range and standard 2-hole mounting. This style is commonly chosen when multiple feeders or taps must land on one termination point with a serviceable bolted connection.

Installed in

Typically installed in panelboards, switchboards, MCCs, control panels, distribution sections, and other indoor electrical equipment. Actual suitability depends on enclosure design, conductor type, torque requirements, and local electrical code.

Why this product exists

This lug provides a field-installable way to terminate multiple conductors without crimp tooling. The dual-rated design supports aluminium and copper conductors, while the tin-plated aluminium body helps support compatibility in common power distribution terminations.

Compared with similar products

Compared with single-conductor lugs, this 3-conductor model helps consolidate terminations. Compared with compression lugs, a mechanical lug is typically easier to install, rework, and inspect in the field. As a rule of thumb, verify conductor count, wire range, stud size, and hole spacing first because those are usually the deciding fit factors.

Specifications

• Brand: ILSCO
• Manufacturer part number: T3A2-350N
• Product type: Mechanical terminal lug
• Series: T3A
• Conductor range: 350 kcmil to 6 AWG
• Number of conductors: 3
• Number of mounting holes: 2
• Mounting bolt size: 1/2 in (12.7 mm)
• Mounting hole spacing: 1-3/4 in (44.5 mm)
• Drive size: 5/16 in
• Material: Aluminium alloy
• Finish: Tin plated
• Listings: UL, CSA
• Typical guidance: DE-OX or similar oxide inhibitor is commonly recommended for aluminium terminations. Actual performance depends on installation conditions, conductor preparation, torque, and local electrical code.