Square D | MA368001121 | Circuit Breaker | 800A | 3-Pole | 600V

Introducing the Square D MA368001121 circuit breaker — a rugged, industrial-grade solution designed for demanding three‑phase power systems. With an 800A rating, 3-pole construction, and a 600V capacity, this device delivers reliable overcurrent protection where it truly counts, keeping critical equipment and processes safe and online.

• Amperage: 800A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: MA368001121

This model is ideal for maintenance, retrofit, and replacement projects where exact specifications matter. The part number MA368001121 serves as the most reliable reference for compatibility with your Square D panels and distribution gear, so verify fit and ratings before ordering to ensure seamless integration.

Why choose this 3-pole, 800A breaker? It’s designed to meet the needs of larger, three‑phase services and feeders that demand robust protection in industrial environments. Use cases include main or feeder protection in commercial or light-industrial panels, power distribution setups in manufacturing facilities, or during panel upgrades where higher amperage protection is required.

Practical considerations and tips:

• Confirm that your panel’s catalog allows the MA368001121 model and that the system voltage does not exceed 600V.
• Plan for proper installation by a licensed electrician, ensuring correct mounting, alignment with bus stabs, and torque requirements per your panel’s guidelines.
• Keep reference to the exact part number handy during retrofits or replacements to avoid mismatches with other Square D devices.

When you need dependable three‑phase protection for substantial loads, this Square D circuit breaker delivers the compatibility, durability, and performance you rely on in critical power infrastructure. Choose MA368001121 for precise fit, clear documentation, and straightforward integration into your existing electrical system.