LGB1B045B - 45Amp Circuit Breaker

LGB1B045B - 45Amp Circuit Breaker

The LGB1B045B is a 45A, 1-pole LGB G-frame circuit breaker for compatible low-voltage panelboards. It uses a thermal-magnetic trip unit and has interrupting ratings of 65 kA at 277V and 14 kA at 347V. If you're replacing a breaker that's already in service, don't judge the match by amperage alone. A 45-amp rating gets you started.

Key Features and Benefits

• 45A, single-pole design for compatible low-voltage panelboard applications
• LGB G-frame configuration helps narrow down the correct physical and functional match
• 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 wire
• A practical choice for maintaining the required breaker configuration in compatible existing equipment

Technical Specifications

• Catalog Number: LGB1B045B
  
• Article Number: US2\:LGB1B045B
  
• Product Type: Low-Voltage Panelboard-Mount Circuit Breaker
  
• Frame: LGB / G Frame
  
• Ampere Rating: 45A
  
• 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 Type: 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: 887621219970
  
• 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 related to REACH Article 33.

Where It Works Best

The LGB1B045B 45A circuit breaker is best suited to existing and legacy low-voltage panelboard equipment that calls for this particular LGB G-frame configuration. It's especially relevant when the job is to keep an existing electrical system in service with the correct breaker type rather than changing the equipment configuration.