EB2050 50A Circuit Breaker

EB2050 50A Circuit Breaker

The EB2050 50-amp 2-pole circuit breaker is designed for dependable circuit protection in electrical distribution systems that utilize EB-frame breakers installed in panelboards manufactured prior to 1989. This thermal-magnetic circuit breaker combines thermal protection for sustained overloads with magnetic response for short-circuit conditions, helping protect wiring and connected equipment from electrical faults. With a 10kA interrupting rating at 120/240VAC, the EB2050 is suited for branch circuit protection in residential, commercial, and light industrial electrical systems where EB-frame breakers are required for proper panel compatibility. Its non-interchangeable trip unit ensures that the breaker’s calibration remains fixed at the factory-specified 50-amp rating, maintaining the intended protection characteristics of the original panel design. The breaker includes load terminals for straightforward installation and is rated for operation at 40°C, making it suitable for typical electrical room environments. Built to meet the functional expectations of legacy electrical systems, the EB2050 provides the correct form, fit, and function needed when maintaining or servicing older panelboards.

Key Features and Benefits

• 50 Amp Continuous Rating – Designed to protect circuits operating up to 50 amps.
• 2-Pole Configuration – Provides protection for two energized conductors in 120/240VAC systems.
• Thermal-Magnetic Protection – Combines overload and short-circuit protection in a single device.
• 10kA Interrupting Capacity – Rated to safely interrupt fault currents up to 10,000 amperes at 120/240VAC.
• EB Frame Design – Manufactured for compatibility with EB-frame panelboards originally produced before 1989.
• Non-Interchangeable Trip Unit – Factory-set trip calibration helps maintain the intended circuit protection.
• 40°C Rated Operation – Suitable for standard electrical installation environments.
• Includes Load Terminals – Terminals are provided to support secure conductor connections during installation.
• Built to Last – Designed for consistent operation within properly maintained electrical systems.

Technical Specifications

• Part Number: EB2050
  
• Amperage Rating: 50 Amps
  
• Poles: 2
  
• Voltage Rating: 120/240 VAC
  
• Interrupting Rating (A.I.C.): 10kA @ 120/240VAC
  
• Frame Type: EB
  
• Trip Unit Type: Thermal-Magnetic, Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Included Terminals: Load Terminals Included
  
• Ship Weight: 2.75 lbs
  
• Shipping Dimensions (Height): 6.0 in
  

Material Compliance and Certifications

• Manufactured to meet applicable industry electrical safety standards associated with molded-case circuit breakers used in North American power distribution systems.
• Designed for installation in equipment built in accordance with UL and NEC guidelines applicable to the original panelboard design.
• Suitable for use in properly maintained electrical distribution equipment where EB-frame breakers are specified.

Where It Works Best

• The EB2050 circuit breaker is commonly used in legacy panelboards and electrical distribution systems built before 1989 that require EB-frame breakers. Typical applications include:
  • Maintenance or repair of older commercial or residential electrical panels
  • Replacement of existing EB-frame breakers in compatible panelboards
  • Electrical service equipment supporting 120/240VAC branch circuits
  • Facilities maintaining original electrical infrastructure where correct breaker fit is required
  When maintaining older electrical equipment, using a breaker that matches the original frame type, amperage rating, and electrical specifications helps ensure the panel continues to operate as designed. The EB2050 provides the correct form, fit, and functional characteristics needed for EB-frame panel systems.