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Thomas & Betts GFB-120 - Molded Case Circuit Breaker 20A 1-Pole

Thomas & Betts
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Thomas & Betts GFB-120 is a 20A single-pole molded case circuit breaker designed for branch circuit protection with integrated ground fault interruption. It operates at 240V AC with a 100kA interrupting capacity at 240V, utilizing a thermal magnetic trip mechanism that provides LI (Long-Time and Instantaneous) protection functions. The unit weighs 2 lb, features a plug-in connection configuration, and is constructed for single-phase systems with an operating temperature range of -13°F to 158°F (-25°C to 70°C). It is UL listed and certified under UL 489 and UL 943 standards, tripping at 5 ±1 milliamperes ground fault. This breaker is suitable for commercial and industrial branch circuit applications requiring ground fault protection.

Key Features & Specifications
  • Type: GFB
  • Current Rating: 20A
  • Poles: 1
  • Voltage Rating: 240 ACV
  • AIC rating: 100kA@240V
  • Interrupt Rating: 10,000 AIC at 120V AC
  • Phase: 1
  • Configuration: Single
  • Connection: Plug-In
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Trip Unit: Thermal magnetic
  • Ground Fault Interrupter (GFI) protection
  • Trips at 5 ±1 milliamperes ground fault
  • Certification: UL listed
  • UL 489 listed
  • UL 943 listed
  • Temp Rating: -13°F - 158°F (-25°C - 70°C)
  • Weight: 2 lb
  • Country of Origin: Mexico