Eaton HMDL3700X - 700 A, 600 V, 3-Pole Circuit Breaker | AmpState

Introducing the Eaton HMDL3700X — a 700A, 600V, 3-pole molded case circuit breaker designed for dependable branch-circuit protection in panelboards and loadcenters. When you need reliable protection for high-current circuits in residential, commercial, or light industrial environments, this unit delivers a robust combination of space efficiency and precise protection.

• Compact molded case design maximizes panel space without sacrificing protection quality.
• Thermal-magnetic trip unit delivers stable, repeatable protection for overloads and short circuits across temperature variations.
• OEM-compatible: designed to drop into matching Eaton OEM loadcenters and panelboards for easy retrofits or new installs.
• Three-pole configuration (3P) provides synchronized protection for three-phase systems and reduces nuisance trips from unequal phases.
• Rated 700A and 600V, suitable for high-current branch circuits and feed-through applications in commercial and light-industrial panels.

Why choose the HMDL3700X? Its high-current capability paired with a compact form factor helps you consolidate space in crowded panels while maintaining NEC-compliant protection. The thermal element responds to overloads predictably, while the magnetic element rapidly clears short circuits to minimize damage to downstream equipment and wiring.

Real-world use cases

• Feeding large loads in service-entry panels or main distribution boards in commercial spaces.
• Subpanel protection for data centers, warehouses, or manufacturing equipment that run on 3-phase power.
• Replacement in retrofit projects where a 3-pole, high-current breaker fits an existing Eaton panelboard lineup.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: HMDL3700X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 700A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Installation and compatibility

To ensure optimal performance, pair the HMDL3700X with matching OEM loadcenters and panelboards from Eaton. This alignment guarantees coordinated trip behavior, reliable protection, and straightforward commissioning in commercial or industrial electrical distributions.

Elevate your panel protection with the Eaton HMDL3700X — high-current capability, engineered reliability, and seamless compatibility, available through AmpState.