HEB1B020B - 20Amp Circuit Breaker

HEB1B020B - 20Amp Circuit Breaker

Keeping your existing electrical system running often comes down to finding the right replacement part. The Siemens HEB1B020B is a 20 Amp, single-pole molded case circuit breaker built for compatible HEB (EG) frame panelboards. It uses a thermal-magnetic trip unit to help protect circuits from overloads and short circuits while matching the original form, fit, and function of the equipment it was designed for. Rated for 277 VAC with a 65kA interrupting capacity (25kAIC at 347 VAC), this breaker is commonly used in commercial and industrial power distribution systems where dependable circuit protection is essential.

Key Features and Benefits

• Siemens HEB (EG) frame molded case circuit breaker
• 20 Amp, single-pole configuration
• Thermal-magnetic trip unit for overload and short-circuit protection
• Form, fit, and functional replacement for compatible Siemens equipment
• Rated for 277 VAC applications
• Load-side lugs (TA1EG10)
• Accepts 8 AWG to 1/0 AWG copper or aluminum conductors
• UL Listed

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HEB1B020B
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: HEB (EG Frame)
  
• Poles: 1
  
• Current Rating: 20 Amps
  
• Voltage Rating: 277 VAC
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Rating: 65kAIC @ 277 VAC; 25kAIC @ 347 VAC
  
• Terminal Type: Load-Side Lugs (TA1EG10)
  
• Wire Range: 8 AWG to 1/0 AWG Copper/Aluminum
  
• Dimensions: 1" W × 5.5" H × 3" D
  
• Weight: Approximately 0.66 lb
  

Material Compliance and Certifications

• UL Listed
• Compatible with copper and aluminum conductors
• Manufactured for compatible Siemens HEB (EG) frame panelboard applications
• ECCN: EAR99
  

Where It Works Best

The HEB1B020B is intended for use in compatible commercial, industrial, and institutional electrical distribution systems that utilize Siemens HEB (EG) frame panelboards. It's a practical choice for maintenance, repair, or replacement projects where preserving the original equipment configuration is important.