Eaton HLD3300 - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton HLD3300, a rugged 3-pole molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a compact form factor and a thermal-magnetic trip unit, this breaker delivers stable, repeatable protection across a range of electrical environments, helping you maximize panel efficiency without sacrificing safety.

• Compact molded case design frees valuable panel space and simplifies installation in tight electrical rooms or crowded distribution panels.
• Thermal-magnetic trip unit delivers precise, predictable protection that adapts to changing load conditions, reducing nuisance trips while guarding wiring and components.
• 3-pole configuration ideal for three-phase systems common in commercial and light industrial settings, ensuring balanced protection across all phases.
• 600 V rating supports modern distribution equipment and aligns with contemporary safety standards for higher-voltage applications.
• 300 A current rating capable of handling substantial branch circuits, providing robust protection without frequent replacements.
• OEM compatibility designed to pair with matching Eaton OEM loadcenters and panelboards for a seamless retrofit or installation.
• Versatile applications suitable for residential, commercial, and light industrial projects where reliable protection and easy maintenance are priorities.

Why the HLD3300 matters for your electrical system

The HLD3300 does more than interrupt current—it anticipates faults and minimizes downtime. The combination of a compact design and a reliable thermal-magnetic trip unit means fewer trips during routine voltage or load fluctuations, safeguarding both conductors and connected equipment. Its three-pole configuration ensures coordinated protection in three-phase systems, while its 600 V rating provides compatibility with a wide range of panelboard architectures.

Technical specifications at a glance

• Manufacturer: Eaton
• Part Number: HLD3300
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 300 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for installers and facility managers who value reliability, panel space efficiency, and straightforward compatibility with Eaton panel systems. Choose the Eaton HLD3300 when you need solid, long-term protection for essential circuits in a range of building types, without compromising on performance or installation simplicity.