ED42B090L - 90Amp Circuit Breaker

ED42B090L - 90 Amp Circuit Breaker

The ED42B090L circuit breaker is a 90 amp, 2-pole molded case breaker designed for dependable protection in commercial and light industrial electrical systems. Built on the Sentron-style ED4 frame, it helps prevent damage caused by overloads and short circuits while keeping electrical distribution systems running safely.

This breaker offers a 65kA interrupting rating at 240VAC and 18kA at 480VAC, providing the level of fault protection commonly required in modern panelboards and distribution equipment. It is also HACR rated, making it suitable for circuits serving heating, air-conditioning, and refrigeration equipment. Because electrical installations can vary, the ED42B090L includes line and load-side terminals and is approved for reverse feed use, giving installers more flexibility during setup or replacement work.

With a 40°C ambient temperature rating, this breaker is designed to operate reliably in standard electrical room environments found in commercial buildings, facilities, and mechanical spaces. Its compact molded case design fits comfortably within compatible equipment while still delivering the current capacity required for many 90-amp applications.

Key Features and Benefits

• 90 amp current rating: for dependable overcurrent protection
• 2-pole design: for multi-phase power distribution circuits
• Interrupting capacity:
  • 18kA at 480VAC
  • 65kA at 240VAC
• Sentron-style ED4 frame construction
• HACR rated: for heating, air conditioning, and refrigeration systems
• 40°C ambient rating: suitable for standard electrical environments
• Reverse feed capable: for additional installation flexibility
• Line and load terminals included: to simplify wiring

Technical Specifications

• Part Number: ED42B090L
  
• Amperage Rating: 90A
  
• Number of Poles: 2
  
• Frame Type: ED4
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Breaker Style: Sentron Molded Case Circuit Breaker
  
• Temperature Rating: 40°C
  
• Terminals: Line and load included
  
• Reverse Feed: Suitable
  
• Approximate Height: 6.35 inches
  
• Shipping Weight: 2.0 lbs
  

Material Compliance and Certifications

• Industry Standards: Molded case circuit breakers in the ED4 class are manufactured to meet established electrical safety and performance standards used throughout North American power distribution systems.
• Installation Compliance: When installed according to electrical code and equipment specifications, they provide dependable protection for electrical circuits and connected equipment.
  

Where It Works Best

• Commercial electrical panelboards
• HVAC and refrigeration equipment circuits
• Industrial machinery power distribution
• Electrical service equipment in office buildings and facilities
• Replacement breakers in compatible ED4 frame systems