Eaton Cutler-Hammer HMCPE100R3C 100A 3P 480V Circuit Breaker, NEMA 3R | AmpState

The Eaton Cutler-Hammer HMCPE100R3C is a purpose-built circuit breaker engineered to protect your panelboards, load centers, and overall electrical distribution with precision. With a 3-pole design rated at 100 amperes and a 480V operating capability, this unit delivers dependable, hard-wearing protection for demanding industrial and commercial environments. Its NEMA 3R rating means it’s suitable for outdoor or exposed installations, delivering weather-resilient performance where reliability matters most.

Direct-part-number match for fast, confident replacements

For maintenance teams, panel builders, and spare inventory, having the exact part matters. The HMCPE100R3C is a genuine Eaton Cutler-Hammer component, ensuring the correct trip characteristics, terminal configuration, and mounting compatibility with Eaton systems. AmpState lists this part as available, simplifying procurement and reducing downtime. If you need a quick compatibility check, AmpState can confirm fit against your current equipment and replacement plans.

Key specifications

• Manufacturer: Eaton Cutler-Hammer
• Product Type: Circuit Breaker
• Part Number: HMCPE100R3C
• Ampere Rating: 100 A
• Poles: 3
• Voltage: 480 V
• Enclosure Rating: NEMA 3R
• Application: Panelboards, load centers, and electrical distribution

Who benefits most

This breaker is a smart fit for facilities managers, electrical contractors, and panel shop professionals who require a reliable, exact-part replacement that aligns with existing Eaton systems. It’s also ideal for stocking spare inventory where quick, accurate part-number matching reduces field time and hardware mismatches.

Use cases and practical considerations

• Outdoor or weather-exposed distribution setups where a 3P 100A protection device is required at 480V.
• Replacing a failed unit in an Eaton Cutler-Hammer ecosystem using a direct part-number match to preserve original coordination and trip profiles.
• Maintaining a ready-to-ship spare inventory to minimize downtime during outages or routine maintenance.

When you’re ready to secure reliable circuit protection with a trusted, exact-fit part, the HMCPE100R3C from AmpState provides a precise, durable solution for your 3-pole 100A, 480V needs.