Eaton | HLD3300W | Circuit Breaker | 300A | 3-Pole

Engineered for reliability in demanding electrical environments, the Eaton HLD3300W 300A 3-Pole Circuit Breaker delivers precise overcurrent protection for three-phase systems. Built to support maintenance, retrofit, and replacement projects, it helps you keep power uninterrupted and panels up to code with confidence.

Key specifications

• Amperage: 300A
• Poles: 3-Pole
• Part number / model: HLD3300W

What makes this breaker unique

• Targeted for maintenance, retrofit, and replacement needs where exact specifications matter, ensuring compatibility with existing Eaton installations.
• The part-number reference (HLD3300W) is your best guide for accurate fit and ratings, reducing the guesswork in ordering and installation.
• Three-pole design provides reliable protection for three-phase circuits, promoting balanced loading and safer operation in industrial and commercial environments.

Ideal use cases

• Maintenance: replace aging or worn breakers in three-phase panels without changing the surrounding infrastructure.
• Retrofit: upgrade panels to meet current protection standards while preserving your original layout.
• Replacement: quickly swap in a like-for-like unit when specifications mandate a 300A, 3-Pole breaker.

Compatibility and installation guidance

Before ordering, verify fit and ratings against your panel’s requirements. Use the HLD3300W part number as the primary reference to ensure seamless compatibility with Eaton-based systems and to maintain proper protection levels across your three-phase setup.

Why choose Eaton for your panel protection

Choosing an Eaton circuit breaker for maintenance, retrofit, or replacement projects means aligning with a trusted lineage of protection devices designed for reliability and predictability. With the HLD3300W, you gain a straightforward, compatible solution that helps keep critical loads safeguarded while simplifying sourcing and installation for professionals managing three-phase electrical infrastructure.