HEB3B070B - 70Amp Circuit Breaker

HEB3B070B - 70Amp Circuit Breaker

The Siemens HEB3B070B is a 70 Amp, 3-pole molded case circuit breaker designed for compatible HEB (EG Frame) low-voltage panelboard applications. When you're replacing an existing breaker, getting the details right is critical. The frame type, pole configuration, amperage rating, voltage rating, and terminal arrangement all need to match the original equipment. This model includes a thermal-magnetic trip unit and load-side lugs (TA1EG10) for applications requiring this specific HEB frame configuration.

Key Features and Benefits

• Siemens HEB (EG Frame) molded case circuit breaker
• 70 Amp current rating
• 3-pole configuration for three-phase applications
• Thermal-magnetic trip unit
• 480 VAC rating
• Load-side lugs included (TA1EG10)
• Accepts 8 AWG to 1/0 AWG copper or aluminum conductors
• Matches the form, fit, and function of compatible HEB frame installations

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HEB3B070B
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: HEB (EG Frame)
  
• Poles: 3
  
• Current Rating: 70 Amps
  
• Voltage Rating: 480 VAC
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Rating:
  65kAIC @ 480 VAC
  25kAIC @ 600Y/347 VAC
• Terminal Configuration: Load-side lugs (TA1EG10)
  
• Wire Range: 8 AWG to 1/0 AWG Copper/Aluminum
  
• Dimensions: 3" W × 5.5" H × 3" D
  
• Weight: 2.557 lb
  
• Country of Origin: Dominican Republic
  

Material Compliance and Certifications

• UL Listed
• Compatible with copper and aluminum conductors
• ECCN: EAR99
• Commodity Code: 8536200040
• WEEE Category 5
• Not classified as dangerous goods
  

Where It Works Best

The Siemens HEB3B070B is commonly used in commercial buildings, industrial facilities, and institutional electrical distribution systems that use compatible HEB (EG Frame) panelboards.