LGB1B050B - 50Amp Circuit Breaker

LGB1B050B - 50Amp Circuit Breaker

The LGB1B050B is a 50A, 1-pole LGB G-frame circuit breaker for compatible low-voltage panelboards. It uses a thermal-magnetic trip unit and is rated 65 kA at 277V and 14 kA at 347V. If you're replacing a breaker in an existing panel, that's useful information right away.

This breaker has TC1GG20 load-side lugs only and accepts 8–1/0 AWG copper or aluminum conductors.

Key Features and Benefits

• 50A, single-pole configuration for compatible low-voltage panelboards
• LGB G-frame design helps identify the required breaker format in existing equipment
• Thermal-magnetic trip unit provides the specified overload and short-circuit protection
• UL Listed LGB frame
• Equipped with TC1GG20 load-side lugs only
• Accepts 8–1/0 AWG copper or aluminum wire

Technical Specifications

• Catalog Number: LGB1B050B
  
• Article Number: US2\:LGB1B050B
  
• Product Type: Low-Voltage Panelboard-Mount Circuit Breaker
  
• Frame: LGB / G Frame
  
• Ampere Rating: 50A
  
• 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: 887621219987
  
• 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 provides information associated with REACH Article 33.

Where It Works Best

The LGB1B050B 50A circuit breaker is a practical fit for existing and legacy low-voltage panelboard equipment designed around the LGB G-frame configuration. It's especially relevant for maintenance jobs where the objective is to keep the equipment's required breaker arrangement intact.