Eaton HFD3175 - 175 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton HFD3175 is a rugged 3-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and loadcenters. With a 175 A rating and a 600 V maximum, this bolt-on unit is built to withstand the demands of residential, commercial, and light industrial applications while delivering consistent protection against overcurrent and short circuits.

• Secure bolt-on mounting: a rigid bus connection minimizes vibration and movement, promoting long-term reliability in demanding environments.
• Thermal-magnetic trip unit: combines thermal and magnetic elements for stable, repeatable protection across varying loads and ambient temperatures.
• 3-pole design: ensures simultaneous disconnection of all conductors in the circuit, enhancing safety and coordination in three-phase layouts.
• OEM-compatible: designed to pair with matching OEM loadcenters and panelboards for straightforward retrofits or new installations.

Technical snapshot

• Manufacturer: Eaton
• Part number: HFD3175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 175 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

The HFD3175 stands out by pairing a bolt-on, vibration-resistant mounting with a reliable thermal-magnetic protection scheme. This combination is especially advantageous for installations where panelboard stability, consistent trip performance, and ease of maintenance are priorities. Rather than relying on plug-in or clip-on alternatives, the bolt-on mounting delivers a more rigid connection to the bus, reducing the risk of loose contacts in environments with equipment vibration or movement.

Ideal use cases

• Residential service panels where durable, long-lasting protection is essential.
• Commercial distribution panels and light industrial cabinets requiring robust overcurrent protection.
• Retrofits or new builds that use Eaton-compatible loadcenters and panelboards.
• Applications needing reliable three-pole protection to coordinate with three-phase systems.

Installation and compatibility notes

• Ensure the panelboard or loadcenter is designed to accept bolt-on molded case breakers of the HFD3175 family for proper fit and safety.
• Follow standard electrical codes and manufacturer installation guidelines to secure the unit and torque fasteners correctly.
• Benefit from a streamlined upgrade path in systems already relying on Eaton components, maintaining consistent protection strategy across the installation.

For professionals seeking a dependable, high-performance breaker that combines secure mounting with repeatable protection, the Eaton HFD3175 delivers clarity of protection, ease of integration, and peace of mind across residential, commercial, and light industrial electrical distributions.