Eaton HMCPS003A0X - 3 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton HMCPS003A0X, a 3 A, 600 V, 3-pole molded case circuit breaker offered through AmpState. Engineered for dependable branch circuit overcurrent and short-circuit protection, it’s built to keep panelboards and loadcenters running safely and efficiently.

• Compact molded case design saves precious panel space, making it easier to fit into tight installations without sacrificing protection.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, snapping open quickly on short circuits while minimizing nuisance trips on steady loads.
• OEM-compatible installation designed to work with matching Eaton loadcenters and panelboards, ensuring seamless integration in existing systems.
• Versatile applications suitable for residential, commercial, and light industrial environments where reliable three-phase protection is needed.

Technical snapshot

• Manufacturer: Eaton
• Part number: HMCPS003A0X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 3 A
• Voltage rating: 600 V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical benefits

Whether you’re upgrading an aging panel or expanding a distribution network in a small commercial space, this 3-pole breaker provides robust protection for three-phase circuits. Its compact form helps maximize panel density, while the thermal-magnetic mechanism ensures reliable operation during fault events. Ideal for contractors managing panelboard replacements, new installations, or panel moves where OEM compatibility matters.

Why this matters for you

Choosing the HMCPS003A0X means selecting a breaker with predictable trip performance, designed to align with Eaton’s panel products and compatible OEM panels. It reduces downtime risk by delivering precise protection where it’s needed most—across all three phases—without requiring a larger, bulkier solution.

Tips for optimal use

• Confirm panel compatibility with your specific loadcenter or panelboard model before installation.
• Match the 3 A rating to your circuit’s expected load and protection requirements to ensure proper selective coordination.
• Pair with appropriate conductors and follow all local electrical codes during installation and servicing.