Thomas Betts 17217-BD Ring Terminal 1/0 Awg 3/8 Inch

Product Description

The THOMAS BETTS 17217-BD is a ring terminal designed for secure, permanent electrical connections on 1/0 AWG conductors. The terminal features a 3/8-inch stud hole, allowing it to fasten directly to bus bars, lugs, and terminal studs commonly found in power distribution, panel work, and heavy-gauge wiring applications. Ring terminals of this type are installed by licensed electricians and electrical contractors working on commercial, industrial, or heavy residential systems where large-conductor terminations are required. The ring-style barrel provides a full mechanical and electrical connection point that resists pullout and vibration under load.

This terminal is suited for applications involving 1/0 AWG wire, which is commonly used in service entrance conductors, feeder runs, grounding electrodes, and heavy equipment circuits. The 3/8-inch stud size accommodates standard fastener hardware found on bus bars, switchgear lugs, and grounding blocks. Electricians working on panel upgrades, sub-panel feeds, or equipment terminations will find this a direct-fit crimp terminal for those large-gauge conductor ends.

Key Features

• Compatible wire size: 1/0 AWG for heavy-gauge conductor terminations
• Stud hole diameter: 3/8 inch for standard bus bar and lug hardware
• Ring-style design provides full 360-degree mechanical retention around the stud
• Crimp-style barrel for reliable, low-resistance electrical connection
• Compact form factor fits tight terminal spaces in panels and enclosures

Compatibility

Designed as an OEM-style crimp ring terminal for use with 1/0 AWG conductors and 3/8-inch stud fasteners in standard electrical panel, distribution, and grounding applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC requirements for large-conductor terminations. De-energize and lock out the circuit before stripping and crimping the conductor. Use a calibrated ratchet crimping tool rated for 1/0 AWG terminals to ensure a proper, gas-tight crimp. Do not use an undersized crimp tool, as an incomplete crimp can result in high resistance, overheating, or conductor pullout.