Eaton MDL3300X - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton MDL3300X — a 300A, 600V, 3-pole molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its design emphasizes space efficiency and consistent protection, making it a reliable choice for a range of electrical installations.

• Compact molded case design for efficient use of panel space, enabling denser, cleaner electrical layouts without sacrificing protection.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, providing reliable overload protection with fast, precise short-circuit clearing.
• 3-pole configuration supports three-phase circuits, ensuring balanced protection across all phases in commercial or light industrial setups.
• 300A, 600V rating suited for high-load branch circuits where robust protection is required.
• OEM compatibility designed to pair with matching Eaton OEM load centers and panelboards for straightforward replacements and consistent protection characteristics.
• Versatile applications ideal for residential, commercial, and light industrial installations that demand dependable circuit protection.

Why it matters in real-world use The MDL3300X delivers predictable protection when it’s needed most, helping prevent wiring damage and equipment failures due to overcurrent or short circuits. Its compact footprint supports more efficient panel layouts, making future expansions or upgrades easier and more cost-effective. With seamless compatibility within Eaton’s panelboard ecosystem, you get coherent protection performance and straightforward maintenance.

Ideal use cases:

• Main distribution panels in small to mid-size commercial spaces
• Subpanels in light industrial facilities
• Residential service panels undergoing upgrades or expansions
• Three-phase distribution where compact, reliable protection is essential

Installation and compatibility The MDL3300X is intended for use with matching Eaton OEM load centers and panelboards. Verify that your panel listing aligns with the MDL3300X rating (300A, 600V, 3-pole) and follow all applicable electrical codes during installation to ensure optimal performance and safety.

With the Eaton MDL3300X, you gain a durable, space-conscious solution that delivers dependable protection for complex, three-phase electrical systems while simplifying future panel planning and upgrades.