Square D AL1000MA Circuit Breaker Mechanical Lug Kit

Product Description

The SQUARE D AL1000MA is a mechanical lug kit designed for use with compatible Square D circuit breakers. It provides a field-installable termination point that accepts conductors without requiring a separate wire lug, simplifying conductor connections at the breaker. The kit is rated for 1/0 AWG conductors, making it suitable for higher-ampacity branch circuit and feeder applications. Licensed electricians install this accessory during panel builds, service upgrades, or retrofits where mechanical lug terminations are preferred over standard terminal screws. It weighs 0.65 pounds and ships as a single-piece kit.

This mechanical lug kit is used in residential and light commercial electrical distribution panels where Square D circuit breakers require direct conductor termination. It is a practical solution for service entrance conductors, feeder taps, and sub-panel connections where flexibility in conductor routing is needed. The 1/0 AWG rating supports higher-load circuits commonly found in main distribution and sub-feed applications.

Key Features

• Accepts 1/0 AWG conductors for higher-ampacity terminations
• Mechanical lug design eliminates the need for additional wire lugs
• Field-installable accessory for compatible Square D circuit breakers
• Compact footprint: 5 inches long, 4.2 inches wide, 1.7 inches tall
• Single-kit packaging for straightforward ordering and inventory

Compatibility

Designed as an OEM-style mechanical lug accessory for compatible Square D circuit breakers. Consult the Square D product documentation or the breaker manufacturer specifications to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the panel before installing or servicing any circuit breaker accessory. Torque all lug connections to the value marked on the lug or breaker housing. Do not exceed the rated conductor size for this lug kit.