3M 7000005887 Aluminum One Hole Lug 250 Kcmil 35 Kv

Product Description

The 3M 7000005887 is a single-hole aluminum compression lug rated for use up to 35 kV and sized for 250 kcmil conductors. It accepts both copper and aluminum conductors, making it a versatile termination fitting for high-voltage electrical installations. The lug barrel includes a factory-applied contact aid that is compatible with polyethylene and EPR insulations, reducing the need for separate oxide-inhibiting compound application. The 0.594-inch inner diameter barrel and 3.620-inch overall length suit standard compression tooling used in medium-voltage cable termination work. Color-coded end caps allow for fast visual identification during installation and inspection.

This lug is suited for medium-voltage cable termination in commercial and industrial electrical systems rated up to 35 kV. Typical applications include switchgear connections, transformer secondary and primary terminations, and underground cable splicing points where aluminum or copper conductors require a reliable mechanical and electrical connection at a single-bolt terminal. Licensed electricians and electrical contractors working under NEC guidelines perform this type of installation in utility, industrial, and large commercial environments.

Key Features

• Rated for systems up to 35 kV for medium-voltage applications
• Accepts both copper and aluminum conductors — no separate lug stocking required
• Factory-applied contact aid in the barrel is compatible with poly and EPR insulations
• Color-coded red end cap provides quick visual identification on the job
• Single-hole mounting with 0.500-inch stud size for standard terminal hardware
• 3.620-inch barrel length fits 250 kcmil conductor sizing

Compatibility

Designed for use with 250 kcmil copper or aluminum conductors in medium-voltage systems up to 35 kV. The contact aid in the lug barrel is confirmed compatible with polyethylene and EPR insulations.

Installation Notes

Installation must be performed by a licensed electrician familiar with medium-voltage termination procedures and applicable NEC requirements. De-energize and verify absence of voltage on the circuit before beginning any termination work. Use the manufacturer-specified compression tool and die set for the conductor size and lug combination to ensure a proper crimp. Inspect the barrel seating and stud torque against the terminal hardware specifications before re-energizing.