Overview
The ABB THQL1120AF2 is a 20 A, 1-pole Q-Line combination arc-fault circuit interrupter for compatible ABB/GE load centers and lighting panels. This plug-in breaker uses a pigtail neutral connection, is rated 120/240 V AC, and provides a 10 kA interrupting rating.
Key Features
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Safety: Combination AFCI protection detects both parallel and series arcing conditions to help reduce electrical fire hazards.
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Installation: The Q-Line plug-in format and pigtail neutral are designed for listed compatible load centers and panels.
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Compatibility: Use only in equipment identified for ABB/GE Q-Line THQL breakers; verify the panel label before installation.
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Performance: Quick-make/quick-break operation supports reliable 20 A branch-circuit protection with a 10 kAIC rating.
Specifications
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Manufacturer / Model: ABB THQL1120AF2
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Electrical Rating: 20 A, 1 pole, 1 phase, 120/240 V AC, 10 kAIC
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Protection: Combination AFCI with thermal-magnetic overcurrent protection
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Series / Mounting: Q-Line, plug-in
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Neutral / Terminal: Pigtail neutral with screw-clamp load connection
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Conductor Range: #14–8 AWG copper; #12–8 AWG aluminum
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Standards / Markings: UL 489, UL 1699, HACR rated, SWD rated
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Reference Temperature: 104°F (40°C)
Common Applications
- 20 A residential branch circuits requiring combination AFCI protection.
- Bedroom, living-area, and similar circuits where the applicable code calls for arc-fault protection.
- Service replacements or panel upgrades in compatible ABB/GE Q-Line equipment.
