E43B090L - 90Amp Circuit Breaker

E43B090L - 90Amp Circuit Breaker

When you need a compatible 90 Amp 3-Pole molded case circuit breaker for an existing electrical distribution system, the E43B090L delivers the form, fit, and function required to keep your equipment operating as intended. Designed as a Type E43 circuit breaker, this unit is commonly used in commercial and industrial power systems where dependable circuit protection and proper equipment compatibility are essential.

The E43B090L features a 90-amp rating, a 3-pole configuration, and interrupting capacities of 18kA at 480VAC and 25kA at 240VAC, making it suitable for a wide range of three-phase electrical applications. Its molded case design helps protect circuits from overloads and short circuits within its published ratings, while the included line and load-side terminals help simplify installation and replacement work.

Facility managers, maintenance teams, and electrical contractors often rely on properly matched circuit breakers to maintain the integrity of existing systems. That's where the E43B090L fits in. Whether it's being installed in a manufacturing facility, commercial building, HVAC system, or other power distribution application, this breaker provides the ratings and compatibility needed for continued operation of existing equipment.

Key Features and Benefits

• 90 Amp current rating
• 3-pole design for three-phase electrical systems
• Type E43 molded case circuit breaker
• Includes both line and load-side terminals
• HACR rated for qualifying HVAC and refrigeration applications
• 18kA interrupting rating at 480VAC
• 25kA interrupting rating at 240VAC
• Designed for operation in ambient temperatures up to 40°C
• Supports form, fit, and functional replacement requirements
• Suitable for compatible commercial and industrial electrical systems
• Helps protect circuits from overload and short-circuit conditions within published ratings
• Built to last for long-term service applications

Technical Specifications

• Part Number: E43B090L
  
• Type: E43
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Amperage Rating: 90 Amps
  
• Poles: 3
  
• A.I.C. Rating: 18kA @ 480VAC; 25kA @ 240VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Included Terminals: Line and Load-Side Terminals
  
• Width: 3.0 in.
  
• Height: 6.35 in.
  
• Depth: 3.92 in.
  
• Dimensions: 3.0"W × 6.35"H × 3.92"D
  
• Approximate Shipping Weight: 5.38 lbs.
  

Material Compliance and Certifications

• HACR Rated
• Molded case circuit breaker construction
• Designed for operation within published voltage and interrupting capacity ratings
• Intended for installation in accordance with applicable electrical codes and manufacturer requirements
• Suitable for use in compatible electrical distribution equipment and assemblies

Where It Works Best

The E43B090L 90 Amp 3-Pole Circuit Breaker is commonly used in facilities that require a compatible Type E43 molded case circuit breaker to maintain or service existing electrical distribution equipment.

• Typical applications include:
• Commercial office buildings
• Manufacturing facilities
• Industrial plants
• HVAC and refrigeration systems
• Mechanical and electrical equipment rooms
• Three-phase power distribution systems
• Panelboard and switchboard installations
• Warehouses and distribution centers
• Schools, universities, and institutional facilities
• Maintenance, repair, and retrofit projects requiring a compatible replacement breaker
• Existing electrical systems utilizing Type E43 circuit breakers

For electricians, maintenance teams, contractors, and facility managers, the E43B090L provides a dependable solution when a 90 Amp, 3-pole Type E43 molded case circuit breaker with line and load-side terminals is required for compatible equipment and electrical distribution systems.