E43B070L - 70Amp Circuit Breaker

E43B070L - 70 Amp Circuit Breaker

When you need a dependable replacement breaker for equipment designed around the E43 frame, the E43B070L molded case circuit breaker provides the proper form, fit, and function to keep your electrical system operating as intended. Rated for 70 amps with a 3-pole configuration, this breaker is built to protect three-phase circuits from overloads and short circuits while maintaining compatibility with existing panelboards, switchboards, and distribution equipment designed for the E43 frame platform. With an interrupting capacity of 18kA at 480VAC and 25kA at 240VAC, it helps manage fault conditions commonly encountered in commercial and industrial environments. The breaker is HACR rated, making it suitable for heating, air conditioning, and refrigeration circuits, and it is calibrated for 40°C ambient conditions, which aligns with many typical electrical room environments. Line and load-side terminals are included to help simplify installation during maintenance or replacement work. Built with durable molded case construction, the E43B070L is designed to provide long service life when properly installed and maintained in compatible electrical systems.

Key Features and Benefits

• 70 Amp Rating – Designed to protect circuits requiring a 70A breaker.
• 3-Pole Design – Suitable for three-phase power distribution systems.
• E43 Frame Compatibility – Ensures proper form, fit, and functional replacement in equipment designed for the E43 frame.
• Interrupting Capacity – Rated 18kA at 480VAC and 25kA at 240VAC to address potential fault currents.
• HACR Rated – Suitable for HVAC and refrigeration equipment circuits.
• Included Terminals – Comes with both line and load-side terminals for installation convenience.
• 40°C Ambient Calibration – Designed for operation in typical commercial and industrial environments.
• Molded Case Construction – Built to last in demanding electrical distribution applications.

Technical Specifications

• Part Number: E43B070L
  
• Breaker Type: Molded Case Circuit Breaker
  
• Frame Type: E43
  
• Amperage Rating: 70 Amps
  
• Poles: 3
  
• Interrupting Capacity:
  • 18kA @ 480VAC
  • 25kA @ 240VAC
• HACR Rated: Yes
  
• Ambient Temperature Rating: 40°C
  
• Terminals: Line and load-side terminals included
  
• Approximate Height: 6.35 in.
  
• Shipping Weight: 3.0 lbs
  

Material Compliance and Certifications

• Industry Standards: The E43B070L molded case circuit breaker is manufactured to meet applicable industry standards for molded case circuit breakers used in commercial and industrial electrical distribution systems.
• HACR Rating: The HACR rating confirms its suitability for heating, air-conditioning, and refrigeration circuits where this certification is required.
• Durable Construction: Its molded case design uses durable materials intended for long service life when installed according to applicable electrical codes and equipment specifications.

Where It Works Best

• Commercial building electrical distribution systems
• Industrial power distribution equipment
• HVAC systems requiring HACR-rated protection
• Panelboards and switchboards designed for E43 frame breakers
• Maintenance and replacement in existing electrical infrastructure