HN3B800 - 800Amp Circuit Breaker

HN3B800 - 800Amp Circuit Breaker

The Siemens HN3B800 is an 800-amp, three-pole molded-case circuit breaker designed for your electrical distribution equipment and built to the HN3 frame configuration. This breaker is rated for 40°C operation and provides interrupt ratings of 42 kA at 600 VAC, 65 kA at 480 VAC, and 65 kA at 240 VAC.

Key Features and Benefits

• 800A rating: Suitable for systems requiring an 800-amp molded case circuit breaker.
• Three-pole design: Matches equipment requiring three-pole circuit protection.
• HN3 frame configuration: Built for applications using the HN3 breaker frame style.
• 40°C operating rating: Meets applications requiring the specified temperature rating.
• Molded case construction: A common breaker design used in electrical distribution equipment.
• Replacement application focused: Helps maintain the existing system configuration when specifications match.
  

Technical Specifications

• Part Number: HN3B800
  
• Manufacturer: Siemens
  
• Product Type: Molded case circuit breaker
  
• Frame Type: HN3
  
• Amperage Rating: 800 A
  
• Number of Poles: Three-pole
  
• Temperature Rating: 40°C
  
• A.I.C. Rating:42 kA at 600 VAC
  
• 65 kA at 480 VAC
  
• 65 kA at 240 VAC
  
• Dimensions: 9.00"W x 15.50"L x 4.00"D
  
• Height: 15.5 in.
  
• Width: 9.0 in.
  
• Depth: 4.0 in.
  
• Approximate Ship Weight: 42.00 lbs
  

Material Compliance and Certifications

The available specifications identify the Siemens HN3B800 as a molded-case circuit breaker, but no additional material compliance details or certification information was provided.

If an installation requires specific environmental, regulatory, or material standards, those requirements should be reviewed separately before use.

Where It Works Best

The Siemens HN3B800 800A molded case circuit breaker is best suited for electrical distribution equipment that requires an HN3 frame, a three-pole breaker, and a matching interrupting rating.

It is a good fit for maintenance projects where the goal is to replace an existing breaker while preserving the original electrical characteristics.