Description
Product Overview
The ABB THQL1120AFP2 AFCI Circuit Breaker is engineered to deliver superior protection against arc faults, a common cause of electrical fires. This single-pole, 20-amp breaker features a compact design measuring 4.5 inches in depth, 1 inch in width, and 3 inches in height, and is constructed from high-quality plastic for durability. It operates at 120 volts and is rated for 20 amps, making it suitable for a variety of electrical panels. The breaker includes advanced detection technology to identify and mitigate hazardous arc conditions, ensuring enhanced safety for your home or business. With part number 112424 and model THQL1120AFP, it integrates seamlessly into existing systems while meeting rigorous industry standards.

Usage
This AFCI breaker is designed for use in residential and light commercial environments where electrical safety is a priority. It is ideal for installation in living spaces, bedrooms, and common areas to protect against arc faults in wiring, outlets, and appliances. Homeowners, electricians, and facility managers will find it essential for upgrading electrical systems to modern safety standards. The plug-in mount design allows for quick integration into compatible load centers, supporting both new construction and retrofit projects. Its reliable performance makes it a go-to choice for ensuring compliance with electrical codes and reducing fire risks in diverse settings.
Why Choose Us
ABB stands out through its commitment to innovation and quality, having acquired GE Industrial Solutions to bring trusted electrical products to the market. This breaker is built with precision and tested for reliability, offering peace of mind with its robust construction and advanced safety features. The combination of ABB’s engineering expertise and high-quality materials ensures long-term performance and compliance with safety standards. Customers benefit from a product that is not only effective but also backed by a warranty, reflecting our dedication to customer satisfaction and electrical safety.
Key Features
- Advanced arc fault detection to prevent electrical fires and enhance safety.
- Compact plug-in mount design for easy installation in standard load centers.
- Durable plastic construction ensuring longevity and resistance to wear.
- 20-amp single-pole configuration suitable for residential and commercial use.
- Compliance with industry standards for reliable performance and code adherence.
FAQ
What is an AFCI circuit breaker?
An AFCI (Arc Fault Circuit Interrupter) breaker is designed to detect dangerous electrical arcs that can cause fires and automatically shut off power to prevent hazards.
Is this breaker compatible with my electrical panel?
This breaker is designed for plug-in mount panels that accept Q-Line breakers; check your panel’s specifications to ensure compatibility before installation.
How do I install the THQL1120AFP2 breaker?
Turn off the main power, align the breaker with the panel’s bus bar, and push firmly until it snaps into place; always follow local electrical codes or hire a professional.
What warranty does this product have?
The breaker comes with a manufacturer’s warranty; refer to the product documentation for specific terms and duration.
Can I use this breaker for outdoor applications?
This breaker is intended for indoor use in dry locations; for outdoor or wet environments, consult the manufacturer’s guidelines or use appropriate enclosures.




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