Overview
The Cutler Hammer HMCP015E0 is a molded-case motor circuit protector engineered for reliable protection in industrial motor control applications. This Series C unit provides instantaneous magnetic-only trip response, making it ideal for OEM equipment, machinery integration, and retrofit installations requiring precise overload coordination with external protection devices.
Key Features
- Magnetic-only trip design — instantaneous protection without thermal delay, ideal for motor load surges
- Adjustable trip range — 45–150A magnetic pickup range allows coordination with external overload relays
- 3-pole configuration — three-phase motor protection in a compact F-frame package
- NEMA Size 0 integration — designed for unit mounting with Eaton NEMA Size 0 motor starters
- UL and CSA certified — complies with UL 489 and CSA C22.2 No. 5.1 standards
Technical Specifications
- Manufacturer: Eaton (Cutler-Hammer)
- Part Number: HMCP015E0
- Series: C
- Frame Type: F-Frame (HMCP)
- Rated Current: 15A
- Voltage Rating: 600 VAC / 250 VDC
- Poles: 3 (three-phase)
- Trip Type: Magnetic (instantaneous only)
- Adjustable Trip Range: 45–150A
- Motor FLA Range: 3.4–12.6A
- Interrupting Rating: 65 kA @ 480V
- Mounting: Bolt-on (panel or unit mount)
- Terminals: Aluminum lugs (line and load side)
- Dimensions: 3.38″ L × 4.13″ W × 6″ H
- Weight: 4.25 lbs
- Certifications: UL 489, CSA C22.2 No. 5.1, IEC 157-1
Typical Applications
- Industrial motor control cabinets and switchgear
- OEM machinery and equipment integration
- Pump and fan motor protection circuits
- Retrofit installations requiring drop-in compatibility with Eaton starters
- Circuit protection where precise magnetic trip coordination is required
Compatibility & Replacements
Compatible With
- Eaton NEMA Size 0 motor starters (unit mounting)
- External motor overload relays (for combined thermal-magnetic protection schemes)
- Molded-case circuit breaker cabinets and distribution panels rated for 600VAC
- Industrial control systems with 45–150A short-circuit coordination requirements
Replaces / Drop-In Replacement For
- HMCP015E0C (non-aluminum terminal variant)
- Westinghouse HMCP015E0 units (same design legacy)
- Earlier Series B HMCP15 units with similar NEMA Size 0 footprints
Works With
- Eaton Cutler-Hammer motor starter platforms (direct integration)
- NEMA 4X and NEMA 12 control enclosures
- Molded-case circuit breaker monitoring systems (fed-thru configuration)
- Industrial automation and machinery control circuits up to 600VAC
