THQB2120GFT - 20Amp Circuit Breaker

THQB2120GFT - 20 Amp Circuit Breaker

The THQB2120GF is a 20-amp, 2-pole circuit breaker with built-in 5mA ground fault protection for your applications requiring both branch circuit protection and personnel safety. Designed for use in compatible Q-Line panelboards, this bolt-on breaker provides protection against overloads, short circuits, and ground fault conditions while maintaining the form and fit required for existing installations.

With a 120/240VAC rating and a 10kA interrupting capacity, the THQB2120GF is commonly found in commercial and industrial electrical systems where ground fault protection is specified. The bolt-on connection helps you to ensure a secure installation, while the molded case construction is built to withstand the demands of everyday operation.

Whether replacing an existing breaker or maintaining a compatible electrical distribution system, the THQB2120GF provides the ratings and protection characteristics required for the application.

Key Features and Benefits

• 20 amp current rating: 20 amp current rating.
• 2-pole configuration: 2-pole configuration.
• Built-in 5mA ground fault protection: Built-in 5mA ground fault protection.
• Rated 120/240VAC: Rated 120/240VAC.
• 10kA interrupting capacity: 10kA interrupting capacity.
• Bolt-on mounting design: Bolt-on mounting design.
• Compatible with designated Q-Line panelboards: Compatible with designated Q-Line panelboards.
• HACR rated: HACR rated.
• Molded case construction: Molded case construction.
• Provides overload, short-circuit, and ground fault protection: Provides overload, short-circuit, and ground fault protection.
  

Technical Specifications

• Part Number: THQB2120GF
  
• Type: THQB-GFT
  
• Amperage: 20A
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• A.I.C. Rating: 10kA
  
• Ground Fault Trip Level: 5mA
  
• Mounting Style: Bolt-On
  
• Series: Q-Line
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 2.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated Construction: The THQB2120GF is a HACR-rated molded case circuit breaker intended for use in compatible electrical distribution equipment.
• Installation Requirements: Installation should be performed in accordance with applicable electrical codes, manufacturer requirements, and system specifications.
  

Where It Works Best

• The THQB2120GF is often used in commercial buildings, schools, healthcare facilities, retail spaces, and light industrial environments where ground fault protection is required. It is suitable for compatible Q-Line panelboards serving 120/240VAC branch circuits, including circuits supplying receptacles, equipment, and other loads requiring GFCI protection.