THQL21125 - 125Amp Circuit Breaker

THQL21125 - 125 Amp Circuit Breaker

The THQL21125 is a dependable 125-amp, 2-pole molded case circuit breaker designed for use in Q-Line load centers and panelboards. Built with a convenient plug-on connection design, this breaker helps you to simplify installation while providing reliable overcurrent and short-circuit protection for 120/240VAC electrical systems. Featuring a 10kA interrupting capacity (A.I.C.), the THQL21125 is engineered to help protect electrical equipment, branch circuits, and connected loads from potentially damaging fault conditions.

As part of the widely used THQL Series, this breaker is suitable for a broad range of commercial, industrial, and residential applications that require a higher-amperage two-pole solution. Its molded case construction is designed for long-term performance, while the HACR rating makes it appropriate for heating, air conditioning, and refrigeration equipment applications. Whether you're protecting large electrical feeders, subpanels, or heavy-duty equipment circuits, the THQL21125 delivers the safety, reliability, and consistent operation professionals expect from a quality circuit protection device.

Key Features and Benefits

• 125 Amp Current Rating: 125 Amp current rating for higher-capacity circuit protection.
• 2-Pole Configuration: 2-pole configuration designed for 120/240VAC systems.
• 10kA Interrupting Capacity: 10kA interrupting capacity (A.I.C.) helps protect against fault currents.
• Plug-On Mounting Design: Plug-on mounting design allows for efficient installation in compatible Q-Line equipment.
• Molded Case Construction: Molded case construction provides dependable electrical protection.
• HACR Rated: HACR rated for use with heating, air conditioning, and refrigeration equipment.
• Equipment Protection: Helps safeguard wiring, equipment, and connected electrical loads from overloads and short circuits.
• Versatile Applications: Suitable for residential, commercial, and light industrial applications.
  

Technical Specifications

• Part Number: THQL21125
  
• Type: THQL
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Pole Configuration: 2 Pole
  
• Amperage Rating: 125 Amp
  
• Voltage Rating: 120/240 VAC
  
• Interrupting Capacity: 10kA A.I.C.
  
• Mounting Type: Plug-On
  
• Product Line: Q-Line
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 2.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• Electrical Distribution Applications: The THQL21125 is manufactured for use in electrical distribution systems requiring dependable overcurrent protection.
• Safe Operation: Its molded case design supports safe operation in compatible electrical equipment and applications.
• Installation Requirements: Users should always verify installation requirements, local electrical codes, and equipment compatibility prior to installation.
  

Where It Works Best

• The THQL21125 is well-suited for protecting higher-capacity branch circuits and feeder applications in residential, commercial, and light industrial environments.
• Electrical distribution panels and load centers.
• HVAC and refrigeration equipment circuits.
• Subpanel feeder protection.
• Commercial building electrical systems.
• Workshop and light industrial equipment.
• High-demand appliances and machinery requiring 120/240VAC protection.
• For applications requiring a 125 Amp 2-pole plug-on circuit breaker, the THQL21125 provides reliable circuit protection, straightforward installation, and dependable performance in compatible Q-Line electrical systems.