HMCP400N5C - 400Amp Motor Circuit Protector

HMCP400N5C - 400Amp Motor Circuit Protector

The Eaton HMCP400N5C is a 400A, three-pole motor circuit protector from the Series C line, designed for applications requiring a Frame K configuration. It has a magnetic trip range of 1500–3000A and is rated for up to 600V AC or 250V DC. If you're replacing an existing HMCP400N5C, the catalog number is a good place to start—but it shouldn't be the only thing you check. Frame size, pole count, trip range, voltage, terminals, and physical dimensions all matter when confirming a proper match.

Key Features and Benefits

• 400A rating for compatible motor protection applications
• Three-pole design in an Eaton Frame K configuration
• 1500–3000A magnetic trip range
• Rated for a maximum of 600V AC and 250V DC
• Part of the Eaton Series C family
• Line and load terminals with non-aluminum terminal material
• Defined dimensions make it easier to check physical fit before installation
• Well suited to replacement applications where matching the existing device's specifications is the priority
  

Technical Specifications

• Manufacturer: Eaton
  
• Catalog Number: HMCP400N5C
  
• UPC: 786679342589
  
• Type: Motor circuit protector
  
• Product Type: Molded case circuit breaker accessory
  
• Series: Series C
  
• Amperage Rating: 400 A
  
• Frame Size: Frame K
  
• Number of Poles: Three-pole
  
• Magnetic Trip Range: 1500–3000 A
  
• Maximum Voltage: 600 V AC / 250 V DC
  
• Terminals: Line and load
  
• Terminal Material: Non-aluminum
  
• Height: 10.13 in
  
• Width: 5.5 in
  
• Depth: 4.1 in
  
• Weight: 11.5 lb
  

Material Compliance and Certifications

The HMCP400N5C is UL Listed and CSA Certified. Eaton identifies the terminal material as non-aluminum. For any additional project-specific compliance requirements, the applicable manufacturer documentation should be checked before installation.

These certifications are useful when confirming a replacement, but they don't tell the whole story. You'll also want to match the 400A rating, Frame K size, three-pole configuration, 1500–3000A magnetic trip range, voltage ratings, terminals, and physical dimensions to the requirements of the existing equipment.

Where It Works Best

The Eaton HMCP400N5C motor circuit protector is intended for motor protection applications that require its specific 400A, three-pole, Frame K Series C configuration. It can be especially useful when maintaining existing or legacy electrical equipment where preserving the original form, fit, and function is important.

When you're working with older equipment, don't rely on amperage alone. Two components can share a 400A rating and still have important differences. Check the complete HMCP400N5C catalog number and compare the frame size, number of poles, magnetic trip range, voltage rating, terminals, and dimensions with the existing device and equipment requirements. That extra check can save a lot of trouble when it's time to install the replacement.