ABB / GE THQB1120GFT 20 Amp 1 Pole GFT Bolt-On Circuit Breaker – THQB Q-Line – 120/240V AC

The ABB / GE THQB1120GFT is a 20 Amp, 1-pole Ground-Fault Trip (GFT) circuit breaker designed for enhanced electrical safety by detecting ground faults in branch circuit applications. It is part of the Q-Line bolt-on breaker family and is used in GE load centers and lighting panels. This breaker provides reliable protection for circuits where ground-fault protection is required, helping reduce electrical shock and equipment damage risks. The bolt-on design ensures a secure connection to the panelboard bus system.

Voltage and Rating

• Current Rating: 20 Amps
• Voltage Rating: 120/240 VAC
• Number of Poles: 1
• Phase: 1-phase applications
• Interrupting Rating: 10 kA @ 120/240 VAC
• Device Type: Ground-Fault Trip (GFT) Circuit Breaker

Key Specifications

• Series: THQB (Q-Line Bolt-On)
• Breaker Type: Thermal Magnetic with ground-fault sensing
• Trip Technology: Fixed thermal and instantaneous with ground fault trip
• Application: Branch circuit ground fault protection
• Mounting Style: Bolt-On
• Brand: ABB / GE

Technical Specifications

• Special Classification: GFT (Ground Fault Trip)
• Trip Function Code: LI + Ground Fault
• Wire Range: Copper/Aluminum conductors per panelboard rating
• Safety Features:
  • Non-interchangeable trip
  • Quick-make/quick-break mechanism
  • Reliable fault interruption
  • Compact one-inch per pole design

Standards and Approvals

• UL 489 Listed
• CSA Certified
• Q-Line design standards

Product Data

• Manufacturer: ABB / General Electric
• Catalog Number: THQB1120GFT
• Series: THQB Q-Line Bolt-On
• Product Type: Circuit Breaker (GFT)

Applications

• Residential and commercial branch circuits
• Equipment and load protection
• Electrical distribution panels (GE load centers)
• Ground fault sensitive installations
• Lighting and receptacle circuits

Returns are easy

You may return items within 30 days of delivery for a refund.

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