Eaton HMCP003A0Y - 3 A, 600 V, 3-Pole Circuit Breaker | AmpState

Eaton HMCP003A0Y is a 3 A, 600 V, 3-pole molded-case circuit breaker purpose-built to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed with efficiency and safety in mind, this breaker fits seamlessly into Eaton’s OEM-panel ecosystems while offering solid protection for a range of applications.

What makes this breaker stand out for real-world electrical protection:

• Compact molded-case design maximizes panel space and simplifies interior layouts, helping you fit more circuits without compromising protection.
• Thermal-magnetic trip unit combines heat-driven, time-delayed protection with instantaneous magnetic response for fast clearing of high-energy faults, reducing damage to wiring and devices.
• 3-pole configuration tailored for three-phase panelboards and load centers, ideal for commercial and light-industrial environments while also supporting multi-pole protection in mixed-installation panels.
• 600 V rated with a 3 A current rating, giving you dependable protection for mid-voltage circuits and a clear, predictable trip characteristic under fault conditions.
• OEM-ready compatibility designed to pair with matching Eaton panelboards and loadcenters for straightforward installation, fewer compatibility concerns, and streamlined maintenance.
• Versatile applicability suitable for residential, commercial, and light-industrial projects where reliable overcurrent and short-circuit protection is essential—and where panel density and space efficiency matter.

Technical specifications at a glance help you verify fit and intent for your project:

• Manufacturer: Eaton
• Part Number: HMCP003A0Y
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 3 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Who benefits most from this breaker? electricians and facilities managers working in interconnected panel systems where space is at a premium and OEM compatibility matters. It’s particularly well-suited for installations in offices, retail spaces, small manufacturing setups, and updated or retrofit panels where a dependable 3-pole, 600 V protection device is required.

Practical usage notes to keep projects running smoothly:

• Pair with matching Eaton OEM load centers and panelboards to ensure electrical coordination and plug-and-play compatibility.
• Rely on the thermal-magnetic trip for protection that remains consistent across a range of ambient temperatures and load profiles, reducing nuisance trips and maintenance needs.
• Use as part of a broader protection strategy in three-phase distribution schemes, where coordinated overcurrent protection minimizes fault energy and downstream damage.

In short, the Eaton HMCP003A0Y delivers precise, reliable three-phase protection in a compact form factor, engineered to fit seamlessly into Eaton panel ecosystems while providing clear, actionable protection for a wide array of commercial and lightweight industrial applications. When you need a dependable 3-pole, 3 A breaker that respects panel space and enhances protection reliability, this Eaton device is a well-matched choice for your electrical distribution needs.