EC3100 - 100Amp Circuit Breaker

EC3100 - 100Amp Circuit Breaker

When an existing electrical distribution system requires a replacement breaker that matches the original specifications, the EC3100 100 Amp 3-Pole Circuit Breaker provides the form, fit, and function needed for compatible Type EC installations. Designed with a thermal-magnetic trip mechanism, this breaker helps protect electrical equipment from overloads and short circuits while supporting the continued operation of commercial and industrial power systems.

The EC3100 features a 100 amp rating, 3-pole configuration, and a 10kA interrupting capacity at 240VAC, making it a practical solution for maintaining existing electrical infrastructure. Its non-interchangeable trip unit helps preserve the protection characteristics intended for the original equipment, which can be especially important when servicing legacy systems where compatibility matters.

Whether you're replacing a failed breaker during an outage, performing scheduled maintenance, or keeping critical electrical systems in service, the EC3100 delivers the ratings and configuration required for dependable operation. Like many electrical components engineered for demanding environments, these breakers were built to last when properly installed and maintained.

Key Features and Benefits

• 100 amp current rating for commercial and industrial power distribution applications
• 3-pole design for use in three-phase electrical systems
• Thermal-magnetic trip mechanism helps protect against overloads and short circuits
• Non-interchangeable trip unit supports original system protection characteristics
• 10kA interrupting capacity at 240VAC
• Rated for operation in ambient temperatures up to 40°C (104°F)
• Includes load terminals
• Designed for use in compatible Type EC electrical equipment
• Suitable for maintenance, repair, and replacement projects involving existing installations
• Built to last in properly maintained electrical systems

Technical Specifications

• Part Number: EC3100
  
• Type: EC
  
• Amperage: 100 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C. Rating): 10kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Trip Type: Thermal-Magnetic
  
• Temperature Rating: 40°C (104°F)
  
• 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 EC3100 is intended for installation in compatible electrical distribution equipment and should be applied in accordance with applicable electrical codes, equipment requirements, and project specifications.
• Compatibility with the existing electrical system should always be verified before installation. Installation, inspection, and maintenance should be performed by qualified electrical professionals following accepted safety practices and local code requirements.
  

Where It Works Best

The EC3100 is commonly used in commercial facilities, industrial plants, manufacturing environments, institutional buildings, and other locations where Type EC circuit breakers remain in service. It is particularly well suited for maintaining existing switchboards, panelboards, and distribution systems that require a 100 amp 3-pole thermal-magnetic circuit breaker with a 10kA interrupting rating at 240VAC. When replacing components in legacy electrical infrastructure, matching the original breaker specifications can help support proper system operation and simplify maintenance activities.