HEB3B020B - 20Amp Circuit Breaker

HEB3B020B - 20Amp Circuit Breaker

The Siemens HEB3B020B is a 20 Amp, 3-pole molded case circuit breaker designed for compatible HEB (EG) frame low-voltage panelboard applications. When you're replacing a breaker in an existing electrical system, the important part is finding the correct match. The frame style, pole count, amperage rating, voltage rating, and lug configuration all need to correspond with the original equipment. This model features a thermal-magnetic trip unit to help protect your circuits from overloads and short circuits while maintaining the requirements of compatible Siemens HEB frame installations.

Key Features and Benefits

• Siemens HEB (EG Frame) molded case circuit breaker
• 20 Amp current rating
• 3-pole configuration
• Thermal-magnetic trip protection
• Rated for 480 VAC applications
• Load-side lugs included (TA1EG10)
• Accepts 8 AWG to 1/0 AWG copper or aluminum conductors

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HEB3B020B
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: HEB (EG Frame)
  
• Poles: 3
  
• Current Rating: 20 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: 1.257 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 HEB3B020B is commonly used in commercial buildings, industrial facilities, and institutional electrical distribution systems that utilize compatible HEB (EG) frame panelboards. It is a good fit for maintenance and replacement projects where the existing breaker needs to match the original installation.