Designed for robust electrical distribution in residential and commercial settings, the Schneider Electric Square D QONQ42LS400 is a high-capacity load center from the QO series. This unit is engineered to manage significant power loads, offering 42 circuit spaces for comprehensive system configuration and future expansion. Its construction supports demanding electrical environments, ensuring reliable power delivery.

Technical details

• Series: Square D QO
• Amperage Rating: 400A
• Voltage Rating: 240VAC
• Number of Circuit Spaces: 42
• Bus Material: Plated Aluminum
• Main Lug Compatibility: Factory-installed main lugs accept wire sizes from 1/0 AWG to 750 kcmil for both copper and aluminum conductors.
• Configuration: Main Lug Only (MLO) load center.
• Enclosure Type: Indoor rated.

Applications & compatibility

This load center is suitable for main service entrance applications in homes, multi-unit dwellings, and commercial buildings requiring substantial power distribution. It is commonly integrated into electrical distribution panels for new construction, major renovations, or upgrades to existing electrical infrastructure where high amperage and numerous circuits are necessary.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the QONQ42LS400 or contact our technical team for cross-reference assistance with compatible Square D QO components.