LGB3B080B - 80Amp Circuit Breaker

LGB3B080B - 80Amp Circuit Breaker

When an existing panelboard calls for an LGB3B080B, matching the full catalog number reduces uncertainty. This 80A, 3-pole LGB G-frame circuit breaker is designed for compatible low-voltage panelboard applications and uses a thermal-magnetic trip unit. Its interrupting ratings are 65 kA at 480Y/277V and 14 kA at 600Y/347V. Those ratings matter, but so do the less obvious details. Frame size, pole count, lug configuration, wire range, and physical dimensions all affect whether your breaker fits an existing installation. For legacy equipment in particular, evaluate the LGB3B080B as a complete specification rather than simply as an 80A breaker.

Key Features and Benefits

• 80A, 3-pole configuration for compatible low-voltage panelboard applications
• LGB G-frame construction provides a specific frame reference for matching existing equipment
• Thermal-magnetic trip unit provides the specified overload and short-circuit protection
• UL Listed LGB frame
• TC1GG20 load-side lugs only
• Accepts 8–1/0 AWG copper or aluminum (Cu/Al) conductors
• Suitable for form, fit, and functional replacement where existing equipment requires the specific LGB3B080B configuration

Technical Specifications

• Catalog Number: LGB3B080B
  
• Article Number: US2\:LGB3B080B
  
• Product Type: Low-Voltage Panelboard-Mount Circuit Breaker
  
• Frame: LGB / G Frame
  
• Ampere Rating: 80A
  
• Number of Poles: 3
  
• Trip Type: Thermal-Magnetic
  
• Interrupting Rating at 480Y/277V: 65 kA
  
• Interrupting Rating at 600Y/347V: 14 kA
  
• Terminal Arrangement: Load-Side Lugs Only
  
• Load Lug Type: TC1GG20
  
• Wire Range: 8–1/0 AWG
  
• Conductor Compatibility: Copper / Aluminum (Cu/Al)
  
• Dimensions: 3"W x 5.4"H x 2.8"D
  
• Net Weight: 2.756 lb
  
• Country of Origin: Mexico
  
• UPC: 887621220310
  
• Commodity Code: 8536200020
  
• Export Classification: ECCN EAR99 / AL N
  
• Dangerous Goods: No
  

Material Compliance and Certifications

The manufacturer-supplied specifications identify the LGB frame as UL Listed. Environmental information for the LGB3B080B also references WEEE (2012/19/EU) take-back obligations and includes information associated with REACH Article 33.

Where It Works Best

The LGB3B080B 80A 3-pole circuit breaker is best suited to existing and legacy low-voltage panelboards designed around this particular LGB G-frame configuration. This is especially relevant in maintenance situations where the objective is to preserve the correct breaker form, fit, and function.