EC3100 - 100Amp Circuit Breaker

EC3100 - 100 Amp Circuit Breaker

The EC3100 circuit breaker is a 3-pole, 100-amp thermal-magnetic molded case circuit breaker designed for dependable overcurrent protection in electrical distribution systems. Built on the EC frame platform, this breaker uses a non-interchangeable trip unit, providing consistent trip characteristics suited for applications where a fixed protection setting is required. Rated for 10kA interrupting capacity at 240VAC, the EC3100 helps protect conductors and equipment from overloads and short circuits while maintaining compatibility with equipment originally designed for EC-frame breakers.

This breaker is 40°C rated, making it suitable for standard operating environments commonly found in commercial and industrial electrical installations. The unit includes load terminals, simplifying installation and ensuring secure electrical connections. With its compact EC frame design and 3-pole configuration, the EC3100 fits properly in panelboards and distribution systems built to accept this breaker style, making it a practical solution when maintaining or servicing existing electrical infrastructure. Like many molded case breakers built for long service life, this model is designed with durable internal components intended to support dependable operation over time.

Key Features and Benefits

• 100 Amp current rating: for branch circuit and feeder protection
• 3-pole configuration: designed for three-phase electrical systems
• Thermal-magnetic trip mechanism: that responds to both overloads and short circuits
• 10kA interrupting rating at 240VAC: for fault current protection
• Non-interchangeable trip unit: ensures fixed trip characteristics
• 40°C ambient rating: suitable for typical electrical equipment environments
• Includes load terminals: for straightforward installation and secure wiring connections
• Designed for form, fit, and functional compatibility: with equipment using EC frame breakers
• Built with durable internal components: intended for long service life

Technical Specifications

• Part Number: EC3100
  
• Amperage Rating: 100A
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-interchangeable
  
• Frame Type: EC
  
• Temperature Rating: 40°C
  
• Included Accessories: Load terminals
  
• Approximate Shipping Weight: 4.13 lbs
  
• Shipping Dimensions (Height): 6.0 in
  

Material Compliance and Certifications

• The EC3100 circuit breaker is manufactured using materials commonly used in molded case circuit breaker construction for electrical distribution equipment. These breakers are typically produced to meet applicable industry electrical safety and performance standards, helping ensure proper operation when installed in compatible equipment and according to electrical codes and manufacturer guidelines.

Where It Works Best

• The EC3100 3-pole 100A circuit breaker is commonly used in electrical distribution systems requiring EC frame compatibility. Typical applications include:
• Commercial facilities such as offices, retail spaces, and small industrial buildings
• Electrical panelboards and distribution panels designed for EC-frame breakers
• Maintenance and service replacements in existing electrical systems
• Three-phase power distribution circuits requiring 100-amp protection
• Facilities maintaining legacy electrical equipment
• Its ratings and configuration make it well suited for electricians, facility maintenance teams, and contractors who need a form-fit-function replacement breaker that matches the original electrical specifications of existing installations.