EB2040 - 40Amp Circuit Breaker

EB2040 - 40Amp Circuit Breaker

When you're maintaining an older electrical system, finding the correct replacement breaker matters. The EB2040 is a 40 Amp, 2-pole thermal-magnetic circuit breaker designed for use in compatible EB-series panelboards manufactured before 1989. Rather than modifying existing equipment or searching for alternative configurations, this breaker helps maintain the original form, fit, and function of qualifying installations.

Built for 120/240VAC applications, the EB2040 combines thermal and magnetic trip protection to help safeguard electrical circuits from overloads and short-circuit conditions. The thermal element responds to sustained overcurrent situations, while the magnetic mechanism reacts quickly when higher fault currents occur.

Whether you're replacing a damaged breaker during a repair, performing scheduled maintenance, or keeping critical systems operational, the EB2040 provides a practical solution for preserving the integrity of existing electrical systems. Built to last and designed specifically for compatible EB panelboards, it remains a trusted choice for maintaining legacy power distribution equipment.

Key Features and Benefits

• 40 Amp current rating for branch circuit protection
• 2-pole configuration for simultaneous disconnection of both poles
• Thermal-magnetic trip mechanism provides protection against overloads and short circuits
• Rated for use in 120/240VAC electrical systems
• 10kA interrupting capacity (AIC)
• Includes load terminals
• Non-interchangeable trip unit helps maintain original equipment configuration
• 40°C rated design
• Intended for compatible EB-series panelboards manufactured before 1989
• Supports maintenance and repair of legacy electrical systems
• Helps preserve original panel form, fit, and function
• Suitable for commercial, industrial, institutional, and municipal applications
• Built to last for long-term service in compatible installations

Technical Specifications

• Part Number: EB2040
  
• Type: EB
  
• Product Category: Thermal-Magnetic Circuit Breaker
  
• Amperage Rating: 40 Amps
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• Interrupting Capacity: 10kAIC @ 120/240VAC
  
• Trip Unit: Non-Interchangeable
  
• Operating Temperature Rating: 40°C
  
• Terminals Included: Load Terminals
  
• Width: 2.75 in.
  
• Height: 6.0 in.
  
• Depth: 3.38 in.
  
• Dimensions: 2.75"W x 6.0"H x 3.38"D
  
• Approximate Shipping Weight: 4.00 lbs.
  

Material Compliance and Certifications

The EB2040 is intended for installation in compatible electrical equipment designed to accept EB-series circuit breakers. Proper application requires verification of panel compatibility, voltage requirements, amperage ratings, and installation specifications before use. Installation and maintenance should be performed by qualified electrical personnel in accordance with applicable electrical codes, manufacturer requirements, and local regulations.

Where It Works Best

• EB-series panelboards manufactured before 1989
• Commercial office buildings
• Industrial facilities and manufacturing plants
• Educational institutions and campuses
• Healthcare facilities
• Municipal and government buildings
• Electrical maintenance and repair projects
• Legacy electrical distribution systems
• 120/240VAC branch circuit applications
• Two-pole circuit protection requirements
• Electrical system refurbishment projects
• Facilities maintaining existing electrical infrastructure