HED43B070L - 70Amp Circuit Breaker

HED43B070L - 70Amp Circuit Breaker

The Siemens HED43B070L is a 70 Amp, 3-pole molded case circuit breaker from the SENTRON ED frame family, built for protecting your 480VAC three-phase electrical distribution systems from overloads and short circuits. It uses a thermal-magnetic trip unit, combining long-time overload protection with instantaneous response to fault conditions. With a 42kAIC interrupting rating at 480VAC, this breaker is intended for installations where the available fault current requires that level of protection.

Key Features and Benefits

• Siemens SENTRON ED frame molded case circuit breaker
• 70 Amp current rating
• Three-pole design for three-phase systems
• Thermal-magnetic trip unit for overload and short-circuit protection
• 480VAC voltage rating
• Includes factory-installed line and load lugs (LN1E100)
• Accepts 10 AWG to 1/0 AWG copper or aluminum conductors
• Standard 40°C calibration
• Built to last for commercial and industrial electrical systems
• Certified to applicable UL and IEC standards
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HED43B070L
  
• Product Family: SENTRON HED4 (ED Frame)
  
• Product Type: Molded Case Circuit Breaker
  
• Current Rating: 70 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 480VAC
  
• Interrupting Capacity: 42kAIC @ 480VAC
  
• Trip Unit: Thermal-Magnetic
  
• Terminal Type: Line and Load Side Lugs (LN1E100)
  
• Wire Range: 10 AWG–1/0 AWG Copper or Aluminum
  
• Calibration Temperature: 40°C
  
• Dimensions (W × H × D): 3 in. × 6.35 in. × 3.92 in.
  
• Weight: 3.858 lbs.
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The Siemens HED43B070L is manufactured to comply with UL 489 and IEC 60947-2 requirements for molded case circuit breakers.

Where It Works Best

The HED43B070L is commonly installed in commercial facilities, industrial plants, manufacturing equipment, and other 480VAC three-phase electrical distribution systems.