HEF437040 - 40Amp Circuit Breaker

HEF437040 - 40Amp Circuit Breaker

The HEF437040 is a 40 Amp, 3-pole molded case circuit breaker built for your electrical distribution systems that require an HEF frame breaker configuration. It provides circuit protection by helping interrupt overload and short-circuit conditions while maintaining the ratings needed for compatible commercial and industrial equipment. With multiple interrupting ratings — 18kA at 600VAC, 25kA at 480VAC, and 65kA at 240VAC — this breaker can be used in applications where these specifications match the existing system requirements.

Key Features and Benefits

• 40 Amp current rating
• Three-pole configuration for three-phase systems
• HEF frame molded case circuit breaker
• Provides overload and short-circuit protection
• Designed for compatible commercial and industrial electrical equipment
• Form, fit, and functional replacement for matching applications
• Built to last for long-term use in electrical distribution systems
  

Technical Specifications

• Part Number: HEF437040
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: HEF
  
• Amperage: 40 Amps
  
• Poles: 3
  
• A.I.C. Rating:
  • 18kA @ 600VAC
  • 25kA @ 480VAC
  • 65kA @ 240VAC
• Approximate Shipping Weight: 7.50 lbs.
  

Material Compliance and Certifications

• Manufactured as a molded case circuit breaker for use in compatible electrical distribution applications
• Designed to meet applicable equipment requirements based on installation specifications
• Confirm system compatibility and applicable electrical codes before installation
  

Where It Works Best

The HEF437040 is commonly used in commercial buildings, industrial facilities, manufacturing environments, and other electrical distribution applications where an HEF frame circuit breaker is specified. It is a good fit for replacement and maintenance work where the original breaker ratings and configuration need to be maintained.