ED43B070L - 70Amp Circuit Breaker

ED43B070L - 70Amp Circuit Breaker

When you need a compatible replacement circuit breaker to keep your electrical system operating as designed, the Siemens ED43B070L delivers the ratings and configuration your installation depends on. This 70 Amp, 3-pole molded case circuit breaker is built for 480V AC commercial and industrial power distribution systems and uses a thermal-magnetic trip unit to help protect equipment from both overloads and short circuits. Whether you're performing scheduled maintenance, replacing a failed breaker, or servicing existing equipment, the ED43B070L is designed as a form, fit, and functional replacement for compatible Siemens ED frame installations.

The breaker features an 18kA interrupting capacity (18kAIC) at 480V AC, making it suitable for applications requiring this fault current rating. It also comes with factory-installed line and load side lugs (LN1E100) that accept 10 AWG through 1/0 AWG copper or aluminum conductors, helping simplify installation in compatible systems.

Key Features and Benefits

• Siemens Sentron ED frame molded case circuit breaker
• 70 Amp continuous current rating
• Three-pole configuration for three-phase electrical systems
• Thermal-magnetic trip unit helps protect against overloads and short circuits
• Rated for 480V AC applications
• 18kA interrupting capacity (18kAIC) at 480V AC
• Factory-installed line and load side lugs (LN1E100)
• Accepts 10 AWG to 1/0 AWG copper or aluminum conductors
• Standard 40°C (104°F) ambient temperature rating
• Designed as a form, fit, and functional replacement for compatible Siemens ED frame installations
• Built to last for long-term use in commercial and industrial electrical systems
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: ED43B070L
  
• Manufacturer Part Number (MFN): ED43B070L
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Sentron ED Frame (ED4)
  
• Trip Unit: Thermal-Magnetic
  
• Current Rating: 70 Amps
  
• Voltage Rating: 480V AC
  
• Poles: 3
  
• Interrupting Rating: 18kAIC @ 480V AC
  
• Terminal Type: Line and Load Side Lugs (LN1E100)
  
• Wire Range: 10 AWG–1/0 AWG Copper or Aluminum
  
• Ambient Temperature Rating: 40°C (104°F)
  
• Dimensions:
  • Width: 3.00 inches
  • Length: 6.35 inches
  • Depth: 3.92 inches
• Weight: 3.75 lbs.
  
• Country of Origin: Mexico

Material Compliance and Certifications

The Siemens ED43B070L is manufactured to meet UL 489 and IEC 60947-2 standards for molded case circuit breakers, helping ensure compatibility with applicable commercial and industrial electrical systems. The breaker is also RoHS compliant (since October 10, 2008) and supports WEEE (2012/19/EU) environmental requirements where applicable. For safe and reliable operation, installation should always be performed by qualified personnel in accordance with the National Electrical Code (NEC), the manufacturer's installation instructions, and all applicable local electrical codes.

Where It Works Best

• Commercial office buildings
• Industrial facilities
• Manufacturing plants
• Electrical distribution panels
• Switchboards
• Motor control equipment
• OEM machinery
• Maintenance and repair of existing electrical systems
• Compatible Siemens ED frame installations requiring a 70 Amp, 3-pole thermal-magnetic circuit breaker