EB3070 - 70Amp Circuit Breaker

EB3070 - 70 Amp Circuit Breaker

The EB3070 circuit breaker is a 70-amp, 3-pole thermal-magnetic breaker designed for use in electrical distribution systems that require dependable overcurrent protection in legacy panel configurations. Built on the EB frame platform, this breaker was originally engineered for panelboards manufactured prior to 1989, making it a practical form-fit-function replacement when maintaining or servicing older electrical infrastructure. The non-interchangeable trip unit provides fixed trip characteristics that help protect conductors and equipment from overloads and short circuits. Rated for 10kA interrupting capacity at 240VAC and calibrated for operation at 40°C, the EB3070 helps ensure consistent circuit protection in commercial, industrial, and facility maintenance applications. Load terminals are included to simplify installation, and the durable construction reflects the long-lasting design common to breakers built for these legacy systems.

Key Features and Benefits

• 70 Amp continuous current rating: for reliable branch or feeder circuit protection
• 3-pole configuration: suitable for three-phase electrical systems
• Thermal-magnetic trip mechanism: responds to both sustained overloads and instantaneous short-circuit conditions
• Non-interchangeable trip unit: designed with fixed trip characteristics
• 10kA interrupting rating at 240VAC: for dependable fault interruption within its rating
• Designed for pre-1989 panelboards: that utilize EB frame breakers
• Load terminals included: to support proper connection during installation
• 40°C ambient rating: consistent with typical electrical equipment operating conditions
• Constructed with durable components: typical of breakers built to last in legacy distribution equipment
  

Technical Specifications

• Part Number: EB3070
  
• Frame Type: EB
  
• Amperage Rating: 70 Amps
  
• Poles: 3
  
• Voltage Rating: 240 VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-interchangeable
  
• Ambient Temperature Rating: 40°C
  
• Load Terminals: Included
  
• Shipping Information:
  • Height: 6.0 in.
  • Weight: 4.13 lbs

Material Compliance and Certifications

• Industry Standards: The EB3070 circuit breaker is manufactured to align with electrical equipment standards applicable to molded case circuit breakers used in North American power distribution systems.
• Construction Practices: Components and construction follow typical industry practices for breakers used in panelboard applications designed for 240VAC systems.
• Always confirm compatibility with the specific panelboard model and installation requirements, as well as local electrical codes and standards.
  

Where It Works Best

• The EB3070 is commonly used in facilities that continue to operate legacy electrical distribution panels installed before 1989.
• Maintenance of existing commercial or industrial panelboards using EB-frame breakers
• Replacement needs in facility electrical rooms and distribution panels
• Service and repair projects involving older electrical infrastructure
• Applications requiring a 70-amp, 3-pole breaker with a 240VAC rating
• This breaker is intended to provide the proper form, fit, and functional replacement within compatible EB-frame panelboards, helping keep established electrical systems operating as designed.