Hubbell YA32A3 Two-hole Compression Lug 400 Aluminum

Product Description

The HUBBELL YA32A3 is a two-hole compression lug designed for terminating 400 kcmil aluminum conductors. It accepts a 1/2 inch stud and is built entirely from aluminum for compatibility with aluminum wiring systems. This type of lug is used to create secure, low-resistance terminations at bus bars, switchgear, panelboards, and other power distribution equipment. Installation is performed by licensed electricians working on medium-to-large commercial and industrial electrical systems. The compression design ensures a gas-tight connection when properly crimped, reducing the risk of oxidation at the termination point.

The YA32A3 is suited for use in commercial and industrial power distribution applications where large-gauge aluminum conductors require a reliable mechanical termination. The two-hole mounting pattern provides added stability and reduces the chance of rotation at the termination point, which is especially important in high-vibration environments or where conductor movement is a concern. It is sold as a single unit, making it practical for both new installation work and service replacement jobs.

Key Features

• Aluminum construction compatible with aluminum conductor systems
• Two-hole lug design reduces rotation and improves termination stability
• Compression-style connection provides a gas-tight, low-resistance crimp
• Rated for 400 kcmil conductor size
• 1/2 inch stud size for standard bus bar and equipment mounting

Compatibility

Designed as an OEM-style compression termination lug for 400 kcmil aluminum conductors requiring a 1/2 inch two-hole mounting configuration in commercial and industrial power distribution equipment.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for aluminum conductor terminations. De-energize the circuit and verify zero voltage with a meter before beginning work. Use a calibrated compression tool sized for the conductor and lug barrel to achieve a proper crimp. Apply an appropriate anti-oxidant compound to the aluminum conductor before insertion to maintain connection integrity over time.