LGB1B080B - 80Amp Circuit Breaker

LGB1B080B - 80Amp Circuit Breaker

The LGB1B080B is an 80A, 1-pole LGB G-frame circuit breaker for compatible low-voltage panelboards. It has a thermal-magnetic trip unit, with interrupting ratings of 65 kA at 277V and 14 kA at 347V, and it works on an existing panel. The 80-amp rating and single-pole configuration are a good starting point, but a proper match goes beyond that. You'll also want to check the frame, trip type, lug arrangement, conductor range, and physical dimensions.

Key Features and Benefits

• 80A, 1-pole configuration for compatible low-voltage panelboard applications
• LGB G-frame design gives you an important reference when checking physical and functional compatibility
• Thermal-magnetic trip unit provides the specified overload and short-circuit protection
• UL Listed LGB frame
• Uses TC1GG20 load-side lugs only
• Accepts 8–1/0 AWG copper or aluminum conductors

Technical Specifications

• Catalog Number: LGB1B080B
  
• Article Number: US2\:LGB1B080B
  
• Product Type: Low-Voltage Panelboard-Mount Circuit Breaker
  
• Frame: LGB / G Frame
  
• Ampere Rating: 80A
  
• Number of Poles: 1
  
• Trip Type: Thermal-Magnetic
  
• Interrupting Rating at 277V: 65 kA
  
• Interrupting Rating at 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: 1"W x 5.4"H x 2.8"D
  
• Net Weight: 0.86 lb
  
• Country of Origin: Mexico
  
• UPC: 887621220013
  
• Commodity Code: 8536200020
  
• Export Classification: ECCN EAR99 / AL N
  
• Dangerous Goods: No
  

Material Compliance and Certifications

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

Where It Works Best

The LGB1B080B 80A circuit breaker is most relevant for existing and legacy low-voltage panelboard equipment designed around an LGB G-frame breaker with this particular configuration. This is the kind of application where checking the small details can save a lot of trouble later.

Connections deserve their own check. The LGB1B080B uses TC1GG20 load-side lugs and accepts 8–1/0 AWG Cu/Al conductors. Then compare the physical footprint—approximately 1 inch wide, 5.4 inches high, and 2.8 inches deep—with the existing breaker and panelboard requirements.