Terminal Lug Definition

Terminal Lug Definition

TERMINAL LUG. A device attached to a conductor to permit connection to a terminal. Selection is based on two main criteria ; the wire size the barrel is designed to accept [AWG], and the tongue with will fit a particular stud size. The barrel may be insulated [Type 2] or non-insulated [Type 1]. Normally both insulated or non-insulated should have the wire crimped on, but in some cases the non-insulated lugs may be soldered. Manufacturers of Solderless Terminals.
There are a number of styles including three and four way. The eyelet may be Ring, Block Spade, Spring Spade, Flanged Spade, or Hook. Some terminal lugs also have two eyelets.

The diagram above shows a preinsulated Terminal Lug.

This diagram shows a Terminal Lug attached to a Terminal Stud.

There are four main types of terminal lugs;
Basic Terminal with insulated nylon support sleeve. Basic terminal with permanently attached insulating sleeve. Basic terminal bonded with silver brazing alloy. Basic terminal with butted seam.

Terminal Lug Assembly

Standard Gauge Terminals;
22-18 Gauge. 16-14 Gauge. 12-10 Gauge. 8 Gauge. 6 Gauge. 4 Gauge. 2 Gauge. 1/0 - 4/0 Gauge.
Standard Stud Sizes
1/4, 5/16, 3/8, 7/16, 1/2, 3/4