Eaton HMCPS100R3X - 100 A, 600 V, 3-Pole Circuit Breaker | AmpState

Introducing the Eaton HMCPS100R3X — a 100 A, 600 V, 3-pole molded case circuit breaker designed to shield your panelboards and loadcenters from harmful overloads and short circuits. Built for dependable branch circuit protection, this unit delivers precise, repeatable performance in a compact footprint that fits neatly into modern electrical enclosures.

• Compact molded case design maximizes panel space while delivering reliable protection, helping you fit more circuits into smaller enclosures without sacrificing safety.
• Thermal-magnetic trip unit provides stable overload protection with an instantaneous magnetic response to short circuits, reducing equipment wear and minimizing downtime.
• OEM-compatible fit designed to pair with matching Eaton OEM loadcenters and panelboards for straightforward installation and consistent electrical coordination.
• Three-pole, 100 A, 600 V configuration offers balanced, three-phase protection ideal for commercial and light industrial applications, as well as residential setups with three-phase equipment needs.
• Targeted application specifically for branch circuit overcurrent and short-circuit protection, ensuring critical circuits — including motors, lighting, and HVAC feeders — stay safeguarded.

Technical snapshot

• Manufacturer: Eaton
• Part number: HMCPS100R3X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 600 V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Who benefits from this breaker?

• Electrical professionals coordinating three-phase systems in commercial spaces and light industrial facilities.
• Facilities managers updating or expanding panelboards, seeking reliable, drop-in protection compatible with Eaton gear.
• Residential projects that require robust three-phase protection for motors, compressors, or large lighting plans within a cohesive Eaton ecosystem.

Practical guidance and care

• Plan around a 600 V system and verify that your panelboard is rated for three-pole protection to ensure optimal performance.
• Keep a small stock of compatible Eaton breakers on hand to simplify replacements and maintain consistent protection curves across installations.
• Use this unit as part of a coordinated protection strategy within panelboards and loadcenters designed to work together, reducing mismatches and maintenance surprises.

Equip your electrical distribution with the Eaton HMCPS100R3X for dependable, space-conscious, three-phase protection that supports residential, commercial, and light industrial circuits. Its compact form, reliable thermal-magnetic trip, and OEM compatibility make it a smart, future-ready choice for safeguarding your electrical infrastructure.