HEB2B050B - 50Amp Circuit Breaker

HEB2B050B - 50Amp Circuit Breaker

The Siemens HEB2B050B is a 50 Amp, 2-pole molded case circuit breaker designed for compatible HEB (EG) frame low-voltage panelboard applications. When you're servicing an existing electrical system, selecting the correct replacement comes down to matching the original breaker details — including frame style, pole count, amperage, voltage rating, and terminal configuration. This model features a thermal-magnetic trip unit to help protect your circuits from overloads and short circuits while maintaining the expected specifications of compatible Siemens equipment.

Key Features and Benefits

• Siemens HEB (EG Frame) molded case circuit breaker
• 50 Amp current rating
• 2-pole configuration
• Thermal-magnetic trip unit
• Rated for 480 VAC applications
• Load-side lugs included (TA1EG10)
• Accepts 8 AWG to 1/0 AWG copper or aluminum conductors
• Designed to match compatible HEB frame panelboard installations

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HEB2B050B
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: HEB (EG Frame)
  
• Poles: 2
  
• Current Rating: 50 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: 2" 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
• RoHS compliance information not available
  

Where It Works Best

The Siemens HEB2B050B is commonly used in commercial buildings, industrial facilities, and institutional electrical distribution systems that utilize HEB (EG) frame panelboards. It is intended for repair and maintenance situations where the existing breaker needs to match the original equipment specifications.