Square D LA400LS Circuit Breaker Enclosure

Product Description

The SQUARE D LA400LS is a circuit breaker enclosure designed to house and protect circuit breaker assemblies in electrical distribution applications. The enclosure provides a dedicated mounting and containment solution for circuit breakers, shielding internal components from physical damage, dust, and incidental contact. At 39 pounds and measuring 45 x 16.4 x 8.9 inches, this is a full-size enclosure suited for commercial and industrial panel installations. Licensed electricians and electrical contractors are the primary installers of this type of enclosure.

This enclosure is appropriate for use in commercial, industrial, and heavy residential electrical installations where circuit breakers require a standalone or supplemental housing. It is suited for retrofit and replacement scenarios where an existing enclosure has been damaged or where a new breaker installation requires a dedicated enclosure. Its size and weight indicate a robust, field-ready assembly intended for permanent installation in accordance with applicable electrical codes.

Key Features

• Full-size enclosure at 45 x 16.4 x 8.9 inches for large circuit breaker assemblies
• Substantial 39-pound construction indicating heavy-gauge enclosure materials
• Sold individually — one enclosure per package
• Designed as a replacement or new-installation enclosure for circuit breaker protection

Compatibility

Designed as an OEM-style replacement enclosure for use with compatible SQUARE D circuit breaker assemblies in commercial and industrial electrical distribution systems.

Installation Notes

Installation should be performed by a licensed electrician in compliance with the National Electrical Code (NEC) and all applicable local codes. De-energize the upstream supply and verify absence of voltage before mounting or wiring any components inside the enclosure. Secure the enclosure to a structurally sound surface rated to support its weight, and ensure all conduit entries and knockouts are properly sealed after wiring is complete.