HMCP400X5C - 400Amp Motor Circuit Protector

HMCP400X5C - 400Amp Motor Circuit Protector

When you’re replacing a motor circuit protector, getting the details right matters. The Eaton HMCP400X5C is a 400A, three-pole Series C motor circuit protector made for applications requiring a J-K frame and a 2000–4000A magnetic trip range. It is rated for up to 600V AC and 250V DC and comes with line and load terminals made of non-aluminum material. For maintenance teams, electricians, and facility personnel working on existing equipment, the HMCP400X5C provides a specific combination of ratings and dimensions that makes it easier to confirm whether the part matches the equipment already in place.

Key Features and Benefits

• 400A rating for equipment designed around this amperage
• Three-pole configuration for compatible motor protection applications
• Part of Eaton's Series C product family
• J-K frame size for applications requiring this particular frame
• 2000–4000A magnetic trip range
• Rated for up to 600V AC or 250V DC
• Includes line and load terminals
• Uses non-aluminum terminal material
• Defined physical dimensions make it easier to check fit when maintaining existing equipment
• Built to last when properly applied, installed, and maintained
  

Technical Specifications

• Manufacturer: Eaton
  
• Catalog Number: HMCP400X5C
  
• Product Type: Molded case circuit breaker accessory
  
• Type: Motor circuit protector
  
• Series: Series C
  
• Amperage Rating: 400 A
  
• Number of Poles: Three-pole
  
• Frame Size: J-K
  
• Magnetic Trip Range: 2000–4000 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
  
• Length/Depth: 4.1 in
  
• Weight: 11.5 lb
  
• UPC: 786679150382
  

Material Compliance and Certifications

The Eaton HMCP400X5C is UL Listed and CSA Certified, providing documentation for applications where these standards are required. Its line and load connections use non-aluminum terminal material.

For projects with additional material or environmental compliance requirements, those requirements should be checked against the appropriate product documentation before the unit is installed.

Where It Works Best

The HMCP400X5C makes the most sense in commercial and industrial motor protection applications that specifically call for its combination of ratings. That means a 400A, three-pole Series C motor circuit protector, a J-K frame, a 2000–4000A magnetic trip range, and operation within its stated maximum voltage ratings.

It is also a practical choice when maintaining existing or legacy electrical equipment designed around the HMCP400X5C. In these situations, the catalog number is an important starting point, but it shouldn't be the only check. Confirm the amperage, number of poles, frame size, voltage, magnetic trip range, terminals, and physical dimensions against the equipment requirements.