EB3070L - 70Amp Circuit Breaker

EB3070L - 70 Amp Circuit Breaker

The EB3070L circuit breaker is a 3-pole, 70-amp thermal-magnetic breaker designed for use in legacy electrical distribution systems built with EB-frame panel equipment manufactured before 1989. It provides dependable circuit protection by automatically interrupting electrical flow during overloads or short-circuit conditions, helping safeguard connected equipment and wiring. Built with a non-interchangeable trip unit and rated for 40°C operation, this breaker delivers consistent protection in typical commercial and industrial electrical environments. The EB3070L includes both line and load terminals, making installation straightforward when replacing an existing breaker with the same form and fit. Designed to last and built for compatibility with older panel systems, this breaker serves as a practical functional replacement when maintaining legacy electrical infrastructure.

Key Features and Benefits

• 70 Amp Continuous Rating: Designed to manage circuits requiring up to 70 amps of current.
• 3-Pole Configuration: Suitable for protecting three-phase electrical systems.
• Thermal-Magnetic Protection: Combines thermal overload protection with instantaneous magnetic response for short circuits.
• 10kA Interrupting Capacity at 240VAC: Rated to safely interrupt fault currents up to 10,000 amps.
• Non-Interchangeable Trip Unit: Factory-set trip characteristics designed for consistent operation.
• 40°C Ambient Rating: Built for reliable performance in typical electrical room temperatures.
• Includes Line and Load Terminals: Helps simplify installation in compatible panelboards.
• Designed for Legacy Panels: Intended for electrical panels manufactured prior to 1989 that use EB-frame breakers.
• Durable Construction: Built with long-lasting components commonly found in commercial electrical equipment.

Technical Specifications

• Part Number: EB3070L
  
• Amperage Rating: 70 Amps
  
• Number of Poles: 3
  
• Interrupting Rating: 10kA @ 240VAC
  
• Frame Type: EB
  
• Trip Unit Type: Thermal-Magnetic (Non-Interchangeable)
  
• Temperature Rating: 40°C
  
• Terminals: Line and Load Terminals Included
  
• Designed For: Panels manufactured before 1989
  
• Shipping Weight: 4.13 lbs
  
• Approximate Shipping Height: 6.0 inches
  

Material Compliance and Certifications

• Industry Materials: The EB3070L circuit breaker is manufactured using industry-standard electrical components and materials commonly used in molded case circuit breakers for commercial and industrial applications.
• Industry Practices: Products in this category are typically designed to align with recognized electrical safety and performance practices used throughout North American electrical distribution systems.
  

Where It Works Best

• The EB3070L 3-pole circuit breaker is commonly used in facilities maintaining older electrical distribution equipment that requires EB-frame breakers.
• Commercial buildings with legacy electrical panels
• Industrial facilities maintaining pre-1989 distribution equipment
• Electrical maintenance and repair projects requiring form-fit replacement breakers
• Service upgrades or panel maintenance where existing EB-frame compatibility is required
• Three-phase circuits serving motors, lighting panels, and distribution loads
• When maintaining older panelboards, selecting a breaker designed for the original system’s specifications helps ensure proper fit and intended electrical protection. The EB3070L is designed specifically for those legacy applications.