KM3B700 - 700Amp Circuit Breaker

KM3B700 - 700Amp Circuit Breaker

When you're keeping existing electrical equipment in service, the nameplate details matter. The KM3B700 is a 700-amp, 3-pole Type KM3 molded case circuit breaker built on the specified Type ET 800 Ampere "KM" Frame. It measures 9.00 "W x 15.50 "L x 4.00" D, so there's a clearly defined footprint to work from when checking the existing installation. When the required form, fit, and electrical ratings match, the KM3B700 can be considered for compatible legacy equipment. Properly selected, installed, and operated within its stated requirements, it's built to last in the application it was designed to serve.

Key Features and Benefits

• 700A rating for applications specifically requiring this amperage.
• 3-pole design for equipment configured for a three-pole breaker.
• Type KM3 molded case circuit breaker construction.
• Uses the specified Type ET 800 Ampere "KM" Frame.
• The 40°C temperature rating is another important detail to consider when selecting a replacement.
• Suitable for consideration in existing and legacy equipment when the required specifications match.
  

Technical Specifications

• Part Number: KM3B700
  
• Breaker Type: Molded Case Circuit Breaker (MCCB)
  
• Type: KM3
  
• Frame: Type ET 800 Ampere “KM” Frame
  
• Amperage: 700A
  
• Poles: 3
  
• Interrupting Rating at 600VAC: 22k AIC
  
• Interrupting Rating at 480VAC: 30k AIC
  
• Interrupting Rating at 240VAC: 42k AIC
  
• Temperature Specification: 40°C
  
• Width: 9.00 in.
  
• Height/Length: 15.50 in.
  
• Depth: 4.00 in.
  
• Dimensions: 9.00"W x 15.50"L x 4.00"D
  
• Approximate Weight: 40.00 lbs.
  

Material Compliance and Certifications

Specific certification and material-compliance details were not provided for the KM3B700. Therefore, do not assume certifications such as UL, RoHS, or REACH.

Where It Works Best

The KM3B700 makes the most sense when servicing existing or legacy electrical equipment that calls for a 700A, 3-pole Type KM3 molded case circuit breaker with the specified Type ET 800 Ampere "KM" Frame.

Before installation, consider the full match, not just the amperage. Check the KM3 type, KM frame, three-pole configuration, 700A rating, dimensions, 40°C specification, and the correct AIC rating for your system voltage. In particular, note that its interrupting rating changes with voltage: 42 kA at 240VAC, 30 kA at 480VAC, and 22 kA at 600VAC.