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The ABB 54138NT is a 4 AWG single-hole copper lug connector designed for secure electrical termination in power distribution and wiring applications. This lug provides a reliable mechanical and electrical connection between conductors and equipment terminals. Copper construction ensures excellent conductivity and resistance to corrosion over the service life of the installation. The single-hole mounting configuration allows straightforward attachment to bus bars, terminal blocks, and equipment lugs commonly found in panelboards, switchgear, and motor control enclosures. Electricians and electrical contractors specify this style of lug when a compact, low-resistance termination is required for 4 AWG copper conductors.
This lug is suited for use in residential, commercial, and light industrial electrical installations where 4 AWG conductor terminations are required. Typical applications include panelboard wiring, grounding connections, and equipment bonding. The single-hole design fits standard termination points on bus bars and terminal blocks inside electrical enclosures. It is intended for use by licensed electricians working under NEC guidelines.
Designed as an OEM-style copper lug for use with 4 AWG copper conductors in standard electrical termination applications.
Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the circuit before beginning any termination work. Use a properly calibrated crimping tool rated for the lug and conductor size to ensure a secure, low-resistance connection. Do not over-crimp or use undersized tooling, as this can damage the lug barrel and compromise the connection.
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