Eaton HMCP003A0X - 3 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Eaton HMCP003A0X is a 3 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered to protect branch circuits in panelboards and load centers. Built to endure the demands of residential, commercial, and light industrial environments, it delivers dependable protection against overcurrent and short circuits where it matters most.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection that stays tight even in dynamic electrical panels.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by responding to both overload and short circuits with consistent tripping behavior.
• OEM-compatible: Designed to integrate with matching OEM load centers and panelboards for straightforward upgrades and replacements.
• Three-pole configuration: Suitable for three-phase protection where required, helping simplify wiring and layout in panel configurations.

Technical snapshot

• Manufacturer: Eaton
• Part Number: HMCP003A0X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 3 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who this is for: electricians, facilities managers, and installers working on residential panels, small-to-mid-size commercial spaces, or light industrial applications who need reliable, easy-to-service protection that aligns with OEM panel systems and provides solid performance under typical load conditions.

Why it matters in real-world use: the combination of a secure bolt-on mount, a thermal-magnetic trip mechanism, and OEM compatibility translates to fewer installation hassles, predictable protection behavior, and smoother maintenance during panel servicing or upgrades. When your setup requires dedicated 3-pole protection at 600 V with a dependable trip curve, the HMCP003A0X delivers precise protection without complicating your panel design.

Practical tips for installation and maintenance:

• Confirm the panelboard or load center requires a 3-pole bolt-on breaker with a 600 V rating before installation.
• Ensure mounting hardware remains tight over time to preserve the vibration-resistant connection.
• Monitor trip events to validate consistent protection—frequent nuisance trips may indicate uneven load distribution or circuit faults worth addressing.