Eaton HMDL3300 - 600 V, 3-Pole Circuit Breaker | AmpState

The Eaton HMDL3300 is a 600 V, 3-pole molded case circuit breaker designed to guard your electrical installations against overcurrent and short circuits. Built for dependable branch circuit protection in panelboards and load centers, this MCCB delivers compact efficiency without sacrificing protection performance.

• Space-efficient design: Compact molded case construction frees panel space, making it easier to fit multiple breakers in tight installations.
• Thermal-magnetic trip unit: Provides stable, repeatable protection with precise overload sensing and fast short-circuit response for minimal equipment damage.
• OEM panel compatibility: Specifically designed to work with matching Eaton OEM load centers and panelboards for seamless integration and coordinated protection.
• Versatile applications: Ideal for residential, commercial, and light industrial environments needing reliable 3-phase protection up to 600 V.
• 3-pole, 600 V rating: Supports three-phase distribution and branch circuits, simplifying 600 V system design.

Technical specifications

• Manufacturer: Eaton
• Part Number: HMDL3300
• Type: Thermal-magnetic molded case circuit breaker
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Where to use: In service panels, distribution boards, and load centers where reliable 3-phase protection is required. It’s a practical choice when upgrading old panels or expanding capacity in small to medium facilities. The thermal-magnetic trip curve helps prevent nuisance trips while ensuring fast disconnection under short-circuit conditions, protecting wiring, devices, and downstream equipment.

From AmpState, you get genuine Eaton parts and accurate specifications tailored to your panel and OEM requirements, backed by a trusted source for electrical protection components.

Ideal for electricians and facility managers who need dependable, code-compliant protection for 3-phase circuits in 600 V systems. Equip your electrical distribution with the Eaton HMDL3300 600 V 3-Pole Circuit Breaker and experience efficient space utilization, reliable protection, and straightforward integration with Eaton load centers and panelboards.