Eaton HLD3350L - 350 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton HLD3350L — a high-capacity, 3-pole molded case circuit breaker engineered for dependable branch circuit protection in panelboards and loadcenters. With a 350A rating and a 600V maximum, it delivers robust overcurrent and short-circuit protection for demanding electrical layouts while preserving clean, organized panel space.

• Compact molded-case design: Maximizes panel space for additional breakers and components without compromising performance.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection across varying loads and temperature conditions, reducing nuisance trips and safeguarding equipment.
• 3-pole configuration: Suitable for multi-phase circuits common in commercial and light-industrial environments.
• 350A, 600V rating: Handles high-currentBranch circuits while supporting a wide range of equipment and loads.
• OEM panel compatibility: Designed to pair with matching Eaton OEM loadcenters and panelboards for straightforward retrofits or new installations.
• Residential, commercial, and light industrial use: A versatile solution that adapts from home service rooms to small business facilities and equipment rooms.

The HLD3350L isn’t just about numbers—it’s about how your electrical system behaves under real-world conditions. The thermal-magnetic protection responds quickly to overcurrent events, helping to isolate faults before they escalate, while its engineering for panel-friendly installation minimizes downtime during upgrades or replacements.

Ideal use scenarios include upgrading large branch circuits in existing Eaton panels, powering high-demand equipment in commercial spaces, or retrofitting new protection into residential or light-industrial panels that require reliable, code-friendly performance. When you choose the Eaton HLD3350L, you’re selecting a trusted component designed to integrate seamlessly with Eaton’s panelboard ecosystem, delivering clear operational benefits and long-term value.

Technical at a glance

• Manufacturer: Eaton
• Part Number: HLD3350L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 350A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

In short, the Eaton HLD3350L offers a capable, space-conscious solution for protecting large branch circuits across residential, commercial, and light industrial environments. Its combination of a compact form factor, reliable thermal-magnetic protection, and seamless compatibility with Eaton’s panelboard family makes it a practical choice for skilled electricians and facilities managers aiming for durable, predictable protection.