EB3090 - 90Amp Circuit Breaker

EB3090 - 90Amp Circuit Breaker

When you're maintaining an older electrical distribution system, finding the correct replacement breaker matters. The EB3090 90 Amp 3-Pole Type EB Circuit Breaker is designed for use in compatible Type EB panelboards manufactured before 1989, making it a practical solution for facilities that continue to rely on proven electrical infrastructure.

Built with a thermal-magnetic trip mechanism, the EB3090 helps protect electrical systems from overloads and short circuits while maintaining compatibility with existing equipment. Its 90-amp rating, 3-pole design, and 10kA interrupting capacity at 240VAC make it well suited for a variety of commercial and industrial power distribution applications where matching original equipment specifications is essential.

Whether you're performing routine maintenance, addressing an unexpected breaker failure, or supporting a long-term facility management program, the EB3090 provides a dependable replacement option for compatible legacy electrical systems. Built to last and rated for operation in ambient temperatures up to 40°C (104°F), it helps keep existing electrical distribution equipment operating safely and efficiently.

Key Features and Benefits

• Designed for use in compatible Type EB panelboards manufactured before 1989
• 90 amp rating for branch and feeder circuit protection
• 3-pole configuration for three-phase electrical distribution systems
• Thermal-magnetic trip mechanism helps protect against overloads and short circuits
• Non-interchangeable trip unit supports original equipment compatibility
• Includes load terminals
• 10kA interrupting capacity at 240VAC
• Rated for operation in ambient temperatures up to 40°C (104°F)
• Helps maintain existing electrical infrastructure without modification to compatible equipment
• Form, fit, and functional replacement for approved Type EB applications
• Built to last in properly maintained electrical systems

Technical Specifications

• Part Number: EB3090
  
• Type: EB
  
• Amperage: 90 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA A.I.C. @ 240VAC
  
• Trip Mechanism: Thermal-Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C (104°F)
  
• Terminals: Load Terminals Included
  
• Width: 4.13 in.
  
• Height: 6.0 in.
  
• Depth: 3.38 in.
  
• Dimensions: 4.13"W × 6.0"H × 3.38"D
  
• Approximate Shipping Weight: 5.50 lbs.
  

Material Compliance and Certifications

The EB3090 is intended for installation in compatible electrical distribution equipment designed to accept Type EB circuit breakers. Installation should be performed by qualified electrical personnel and in accordance with applicable electrical codes, manufacturer requirements, equipment labeling, and site-specific safety procedures. Compatibility with the existing panelboard, voltage requirements, and system specifications should always be verified prior to installation.

Where It Works Best

The EB3090 is commonly used in the maintenance and servicing of compatible legacy electrical systems, including:

• Commercial office buildings
• Manufacturing and industrial facilities
• Educational institutions and campus buildings
• Government and municipal properties
• Healthcare and institutional facilities
• Maintenance projects involving compatible pre-1989 Type EB panelboards
• Three-phase power distribution systems requiring 90 amp circuit protection
• Existing electrical infrastructure where maintaining original equipment specifications is important
• Repair and replacement projects involving legacy electrical distribution equipment