EB2040 - 40Amp Circuit Breaker

EB2040 - 40 Amp Circuit Breaker

The EB2040 circuit breaker is a 2-pole, 40-amp thermal-magnetic breaker designed for use in electrical distribution panels manufactured prior to 1989 that require the EB frame style. Built for dependable circuit protection in legacy systems, this breaker helps safeguard branch circuits from overloads and short circuits while maintaining proper form, fit, and function within compatible panel configurations. The EB2040 features a non-interchangeable trip unit and is rated for operation at 40°C, supporting reliable performance under typical electrical room conditions. With a 10k A.I.C. interrupting rating at 120/240VAC, it is suitable for residential and light commercial electrical distribution applications that rely on EB-frame circuit protection. Load terminals are included, helping simplify installation and secure conductor connections in compatible panelboards. Products in this class are built to last and are commonly used when maintaining or servicing older electrical systems that still depend on EB-style breakers.

Key Features and Benefits

• Form, Fit, and Functional Replacement – Designed for compatibility with EB frame panelboards manufactured before 1989
• 2-Pole Configuration – Protects two circuits simultaneously or supports 240-volt applications
• 40 Amp Rating – Suitable for circuits requiring medium-capacity branch protection
• Thermal-Magnetic Trip Mechanism – Provides protection from both prolonged overloads and instantaneous short circuits
• 10kA Interrupting Capacity – Rated to safely interrupt fault currents up to 10,000 amps at 120/240VAC
• 40°C Rated Operation – Designed to perform within standard electrical equipment operating environments
• Load Terminals Included – Helps provide secure and convenient conductor connections during installation
• Non-Interchangeable Trip Unit – Maintains consistent breaker calibration and operation

Technical Specifications

• Part Number: EB2040
  
• Frame Type: EB
  
• Number of Poles: 2
  
• Current Rating: 40 Amperes
  
• Voltage Rating: 120/240 VAC
  
• A.I.C. Rating: 10kA
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Load Terminals: Included
  
• Approximate Shipping Weight: 2.75 lbs
  
• Approximate Shipping Height: 6.0 inches
  
• Panel Compatibility: Designed for panelboards manufactured before 1989 that accept EB frame breakers
  

Material Compliance and Certifications

• Standards Compliance: The EB2040 circuit breaker is manufactured to meet applicable electrical equipment standards for molded case circuit breakers used in low-voltage distribution systems.
• Material and Construction: Materials and construction follow industry practices commonly used for circuit protection components installed in residential and commercial electrical equipment.
• Installation Consideration: Compliance and suitability ultimately depend on the installation environment and the electrical panel in which the breaker is used.
  

Where It Works Best

• The EB2040 40-amp breaker is commonly used in applications where maintaining or servicing older EB-frame electrical panels is required. Typical environments include: Residential electrical distribution panels built before 1989, Small commercial electrical systems using EB frame breakers, Maintenance or replacement in existing electrical infrastructure, Branch circuits requiring a 2-pole 40A breaker at 120/240VAC. Its design supports continued operation of legacy electrical panels that rely on EB-frame circuit breakers, helping ensure circuits remain properly protected while preserving compatibility with the original equipment configuration.