Square D | MEFC836LS | Circuit Breaker | 800A | 3-Pole | 600V

Square D MEFC836LS Circuit Breaker is your dependable, genuine protection solution for demanding electrical systems. Designed for maintenance, retrofit, and replacement projects, this 800A, 3-pole unit delivers reliable overcurrent protection at up to 600V, helping keep critical equipment and processes running smoothly.

Key specifications

• Amperage: 800A
• Poles: 3-Pole
• Voltage: 600V

Why this breaker stands out

• Genuine Square D component designed to integrate seamlessly with existing Square D panels and assemblies, reducing compatibility headaches during upgrades or replacements.
• 3-pole configuration provides robust protection for three-phase systems, making it ideal for industrial feeders, motor circuits, and power distribution panels.
• High-current rating (800A) supports demanding loads while maintaining precise tripping behavior to prevent equipment damage and downtime.
• Part number MEFC836LS serves as the most reliable reference for compatibility, ensuring you’re selecting the exact substitute or retrofit product your system requires.

Ideal use cases

• Retrofits and upgrades in manufacturing lines where a high-current, three-phase breaker is needed to handle heavier workloads.
• Maintenance replacements in service or distribution panels where matching the original specifications is critical.
• New installations that require a rugged, factory-certified protection device capable of withstanding industrial operating conditions.

Installation notes and practical tips

• Before ordering, confirm fit and ratings against your panel schedule and system requirements to avoid compatibility issues.
• Use the part number MEFC836LS as your primary reference to ensure correct replacement or retrofit alignment with your existing Square D setup.
• Verify that your wiring, conductor sizing, and installation environment meet the panel’s electrical and safety specifications for optimal performance.
• For ongoing protection, pair this breaker with proper enclosure ratings and enclosure grounding practices to maintain system integrity under fault conditions.

Choose the Square D MEFC836LS when you need dependable, high-capacity three-phase protection that aligns precisely with your existing Square D infrastructure. It’s built for reliability in demanding environments, ensuring continuity of operation and clear, predictable protection for your critical loads.