HE3B125 - 125Amp Circuit Breaker

HE3B125 - 125Amp Circuit Breaker

When replacing an existing HE3B125 circuit breaker, choosing a breaker with matching electrical ratings and physical dimensions helps maintain compatibility with your existing equipment. The HE3B125 molded case circuit breaker is a 125 amp, 3-pole breaker designed for applications requiring an HE3 Type device with specific voltage and interrupting ratings. Whether you're performing scheduled maintenance or replacing a worn breaker, selecting the correct replacement helps preserve the original design and operation of your electrical distribution system.

Key Features and Benefits

• 125 amp current rating
• Three-pole molded case circuit breaker
• HE3 Type design
• Form, fit, and functional replacement for compatible electrical systems
• Rated for operation in 40°C ambient conditions
• Provides overload and short-circuit protection for compatible applications

Technical Specifications

• Part Number: HE3B125
  
• Type: HE3
  
• Product Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage: 125A
  
• Interrupting Rating: 18kA @ 600VAC; 25kA @ 480VAC; 65kA @ 240VAC
  
• Ambient Temperature Rating: 40°C
  
• Dimensions: 4.50" W × 6.00" H × 3.63" D
  
• Approximate Shipping Weight: 7.00 lbs.
  

Material Compliance and Certifications

• Molded case circuit breaker construction
• Rated for operation in 40°C ambient environments
• Designed to meet the listed voltage and interrupting capacity requirements
  

Where It Works Best

The HE3B125 is commonly used in commercial buildings, industrial facilities, manufacturing equipment, and electrical distribution systems that require an HE3 Type, 125 amp, 3-pole molded case circuit breaker.