Square D MG24438 - 40A, Circuit Breaker

Meet the Square D MG24438 40A circuit breaker—trusted overcurrent protection built for demanding electrical environments. This MG-series breaker is designed to deliver dependable performance in industrial, commercial, and OEM applications, helping you minimize unplanned downtime and protect vital equipment from overloads.

Designed for seamless integration in panelboards, switchboards, control panels, and OEM equipment, the MG24438 provides a reliable 40A current rating that you can count on across a range of loads. Whether you’re powering motors, drives, or other high-demand circuits, this breaker offers consistent protection and durable operation in distribution panels and motor control centers.

• Current rating: 40A, delivering clear, predictable protection for medium-to-high demand circuits.
• Versatile applications: Suitable for panelboards, switchboards, control panels, and OEM equipment across industrial and commercial settings.
• Reliable protection for critical systems: Ideal for distribution panels and motor control centers where steady, dependable performance matters.
• Brand and lineage: Part of the Square D MG family, combining legacy reliability with modern, practical utility in everyday electrical protection.

Use cases to consider: upgrading or stocking a spare for manufacturing lines with motor control centers, refreshing power distribution in commercial facilities that demand robust protection, or equipping OEM control enclosures where a 40A breaker is the right balance of protection and operational flexibility. The MG24438 is purpose-built to support safer, more predictable power distribution, so technicians can troubleshoot and maintain systems with confidence.

In short, choosing the Square D MG24438 means prioritizing dependable overcurrent protection, clear trip behavior, and a proven design that fits into established distribution architectures. If reliability and precise 40A protection are your goals, this circuit breaker is a practical, long-term component for your electrical protection strategy.