E42B080 - 80Amp Circuit Breaker

E42B080 - 80Amp Circuit Breaker

When keeping an existing electrical system operating as intended, finding a circuit breaker that matches the original specifications matters. The E42B080 molded case circuit breaker is a 2-pole, 80-amp Type E42 breaker designed for applications where proper fit, electrical ratings, and mounting configuration are essential. Whether you're performing routine maintenance, replacing a failed breaker, or servicing an existing distribution system, this breaker provides the form, fit, and function needed for compatible installations.

Featuring a bolt-on design, the E42B080 installs securely in compatible equipment and includes load-side terminals for added convenience during installation. With an interrupting capacity of 25kA at 240VAC and 18kA at 480VAC, it is designed to handle the demands of commercial and industrial electrical systems while providing overcurrent protection where it is needed most.

The breaker is also HACR rated, making it suitable for qualifying HVAC and refrigeration equipment found in office buildings, manufacturing facilities, retail spaces, and other commercial environments. Built to last and engineered for dependable day-to-day operation, the E42B080 remains a practical choice for electricians, maintenance professionals, and facility managers tasked with maintaining existing electrical infrastructure.

Key Features and Benefits

• 80 amp current rating for branch and feeder circuit protection
• 2-pole configuration for compatible electrical systems
• Type E42 molded case circuit breaker
• Bolt-on design for secure installation in compatible equipment
• Includes load-side terminals
• HACR rated for qualifying HVAC and refrigeration applications
• Interrupting capacity of 25kA at 240VAC
• Interrupting capacity of 18kA at 480VAC
• Designed for form, fit, and functional replacement applications
• Suitable for commercial, industrial, and facility maintenance environments
• Built to last for long-term service in compatible systems
• Rated for operation in ambient temperatures up to 40°C (104°F)

Technical Specifications

• Part Number: E42B080
  
• Type: E42
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Mounting Style: Bolt-On
  
• Amperage: 80 Amps
  
• Poles: 2
  
• A.I.C. Rating: 25kA @ 240VAC; 18kA @ 480VAC
  
• Temperature Rating: 40°C (104°F)
  
• HACR Rated: Yes
  
• Included Terminals: Load-Side Terminals
  
• Width: 2.0 in.
  
• Height: 6.35 in.
  
• Depth: 3.92 in.
  
• Dimensions: 2.0"W x 6.35"H x 3.92"D
  
• Approximate Ship Weight: 4.31 lbs.
  

Material Compliance and Certifications

• HACR rated for qualifying heating, ventilation, air conditioning, and refrigeration applications
• Molded case circuit breaker construction
• Rated for operation in ambient temperatures up to 40°C (104°F)
• Designed for use within published electrical ratings and specifications
• Intended for installation in accordance with applicable electrical codes and equipment requirements

Where It Works Best

The E42B080 80A 2-pole circuit breaker is commonly used in commercial facilities, industrial buildings, warehouses, manufacturing operations, HVAC systems, refrigeration equipment, and electrical distribution panels that require a compatible Type E42 bolt-on breaker. It is particularly useful for maintenance and replacement projects where matching the original circuit breaker’s electrical ratings, mounting style, and physical dimensions is necessary to preserve the intended operation of the existing system.