EB3100 - 100Amp Circuit Breaker

EB3100 - 100 Amp Circuit Breaker

The EB3100 circuit breaker is a 3-pole, 100-amp molded case circuit breaker designed for electrical panels that require the EB frame type used in systems manufactured before 1989. It provides dependable circuit protection by interrupting power during overloads and short circuit conditions, helping protect wiring and connected equipment from electrical damage. This breaker uses a thermal-magnetic trip mechanism, a widely used design that responds to two types of faults. The thermal element reacts to sustained overload conditions, while the magnetic element responds instantly to high-level short circuits. The EB3100 features a 10kA interrupting capacity at 240VAC, making it appropriate for many commercial and industrial distribution panels where a three-phase breaker is required. The non-interchangeable trip unit ensures the breaker maintains its factory trip characteristics. This design helps keep protection settings consistent within existing panel configurations. The unit also includes load terminals for proper conductor connections during installation. Rated for 40°C operation, the EB3100 is intended for typical electrical room environments. Like many breakers built during this era, it was designed with long-term service in mind and remains a practical solution when maintaining compatible legacy panelboards.

Key Features and Benefits

• 3-Pole breaker: 3-Pole breaker for protection of three-phase circuits
• 100 amp current rating: 100 amp current rating for branch circuit protection
• Thermal-magnetic trip mechanism: Thermal-magnetic trip mechanism responds to both overloads and short circuits
• 10kA A.I.C. rating at 240VAC: 10kA A.I.C. rating at 240VAC for safe fault interruption within rated limits
• Non-interchangeable trip unit: Non-interchangeable trip unit maintains consistent protection settings
• Load terminals included: Load terminals included for proper electrical connections
• EB frame compatibility: EB frame compatibility for panels built prior to 1989
• Durable internal components: Built with durable internal components intended for long service life
  

Technical Specifications

• Part Number: EB3100
  
• Frame Type: EB
  
• Poles: 3
  
• Amperage Rating: 100A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA A.I.C.
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-interchangeable
  
• Temperature Rating: 40°C
  
• Included Components: Load terminals
  
• Ship Weight: 4.13 lbs
  
• Shipping Height: 6.0 inches
  
• Panel Compatibility: EB frame panelboards manufactured before 1989
  

Material Compliance and Certifications

• Manufacturing Standards: The EB3100 circuit breaker is manufactured to meet the electrical safety and construction standards commonly applied to molded case circuit breakers used in North American power distribution systems.
• Material Guidelines: Materials and internal components follow industry guidelines for electrical equipment installed in commercial and industrial environments.
  

Where It Works Best

• The EB3100 100A 3-pole circuit breaker is typically used when servicing or maintaining electrical panels that require EB frame breakers. It is commonly found in commercial buildings with legacy distribution equipment, industrial facilities maintaining existing electrical systems, electrical service replacements for older panelboards, and three-phase branch circuit protection in compatible panels. Because it matches the form, fit, and electrical ratings expected by EB-frame panel designs, the EB3100 allows technicians to maintain existing electrical infrastructure without modifying the original panel configuration.