HMCP400G5C - 400Amp Motor Circuit Protector

HMCP400G5C - 400Amp Motor Circuit Protector

When you’re replacing a motor circuit protector, getting the details right matters. The Eaton HMCP400G5C is a 400A, three-pole Series C motor circuit protector built around a J-K frame and a 750–1500A magnetic trip range. It carries a maximum voltage rating of 600V AC and 250V DC and comes with line and load terminals made of non-aluminum material. For maintenance teams, electricians, and facilities working with equipment that calls for this particular configuration, those specifications make it straightforward to compare the HMCP400G5C with the component being replaced.

Key Features and Benefits

• 400A rating: Designed for motor protection applications requiring this specific amperage.
• 750–1500A magnetic trip range: An important specification when matching the protector to the intended equipment.
• Three-pole design: Provides the required configuration for compatible three-pole applications.
• J-K frame: Makes it easier to confirm physical compatibility with equipment designed around this frame size.
• Series C: Suitable for installations requiring the corresponding Eaton Series C configuration.
• Up to 600V AC or 250V DC: Clearly defined maximum voltage ratings help with application verification.
• Line and load terminals: Supplied in the specified terminal configuration with non-aluminum terminal material.
  

Technical Specifications

• Manufacturer: Eaton
  
• Catalog Number: HMCP400G5C
  
• UPC: 786679342503
  
• Type: Motor circuit protector
  
• Product Type: Molded case circuit breaker accessory
  
• Series: Series C
  
• Frame Size: J-K
  
• Amperage Rating: 400 A
  
• Magnetic Trip Range: 750–1500 A
  
• Maximum Voltage: 600 V AC / 250 V DC
  
• Number of Poles: Three-pole
  
• Terminals: Line and load
  
• Terminal Material: Non-aluminum
  
• Height: 10.13 in
  
• Width: 5.5 in
  
• Length/Depth: 4.1 in
  
• Weight: 11.5 lb
  

Material Compliance and Certifications

The HMCP400G5C is UL Listed and CSA Certified. Eaton specifies non-aluminum material for its line and load terminals. These details are especially useful when an existing installation has defined certification, terminal, or equipment requirements.

For replacement applications, certification is only one part of the compatibility check. The catalog number, electrical ratings, frame size, pole count, trip range, terminal configuration, and dimensions should all be compared with the requirements of the existing equipment.

Where It Works Best

The Eaton HMCP400G5C makes the most sense in motor protection applications that specifically call for a 400A, three-pole Series C motor circuit protector with a J-K frame and 750–1500A magnetic trip range. It’s particularly useful in maintenance and replacement situations where keeping the original equipment configuration matters.

If you’re replacing an existing unit, don’t rely on the 400A rating alone. Check the HMCP400G5C catalog number, frame size, voltage rating, number of poles, magnetic trip range, terminal configuration, and dimensions against the equipment documentation. Matching those details is the better way to determine whether this component provides the required form, fit, and function for the installation.