Eaton HMCPS003A0W - 3 A, 600 V, 3-Pole Circuit Breaker | AmpState

Introducing the Eaton HMCPS003A0W — a precise 3 A, 600 V, 3-pole molded case circuit breaker designed to deliver reliable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its compact molded case optimizes panel space, while a thermal-magnetic trip unit provides stable, repeatable protection across a range of loads and conditions.

Key benefits

• Compact molded case design maximizes usable space in panels, enabling cleaner, more organized electrical distributions.
• Thermal-magnetic trip unit combines overload and short-circuit protection for fast, dependable response with predictable trip characteristics.
• 3-pole configuration ideal for 3-phase circuits up to 600 V, making it suitable for commercial and light industrial setups as well as certain residential applications.
• OEM/panelboard compatibility designed for seamless integration with matching Eaton OEM loadcenters and panelboards, ensuring a straightforward upgrade or replacement.

Where it fits

Perfect for protecting branch circuits against overcurrent and short circuits in panelboards and loadcenters. Ideal for residential, commercial, and light industrial environments where compact, reliable protection is essential. Use this 3 A breaker to safeguard lighting feeders, small motor circuits, control panels, and other 3-phase or multi-wire configurations that require precise, dependable protection at up to 600 V.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: HMCPS003A0W
• 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 in panelboards/loadcenters

Why this matters

Choosing the Eaton HMCPS003A0W means you’re pairing a trusted protection device with a design that respects panel real estate while delivering consistent protection curves. The result is fewer nuisance trips during normal operation and quick, predictable response when a fault occurs — safeguarding wiring, equipment, and personnel across your electrical system.

Practical tips for installation and use

• Confirm your panelboard is compatible with this 3-pole, 600 V unit and that the amperage matches your circuit’s protected load.
• Verify labeling and ensure the trip characteristics align with your protection scheme for motors, lighting, or general power circuits.
• Keep a few spares on hand for straightforward maintenance or panelboard upgrades—this helps minimize downtime during service or reconfigurations.
• Follow manufacturer installation instructions for torque and mounting to maintain optimal performance and ensure long-term reliability.