Overview
The ABB THQL1120DF is a 20 A, 1-pole Q-Line dual-function circuit breaker that combines combination arc-fault and Class A ground-fault protection. It is designed for compatible ABB/GE Q-Line equipment, operates at 120 V AC, uses a plug-in pigtail-neutral configuration, and carries a 10 kA interrupting rating.
Key Features
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Safety: Integrated AFCI and GFCI protection helps address both hazardous arcing and personnel-level ground-fault conditions.
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Installation: Plug-in mounting, a pigtail neutral, and a box-lug load connection support installation in listed compatible Q-Line panels.
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Compatibility: Use only in ABB/GE load centers identified for Q-Line THQL breakers; confirm the panel label before installation.
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Performance: A 20 A thermal-magnetic mechanism provides branch-circuit overcurrent protection with a 10 kAIC rating at 120 V AC.
Specifications
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Manufacturer / Model: ABB THQL1120DF
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Electrical Rating: 20 A, 1 pole, 1 phase, 120 V AC, 10 kAIC
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Protection: Dual function AFCI/GFCI with thermal-magnetic overcurrent protection
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Series / Mounting: Q-Line, plug-in
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Neutral / Terminal: Pigtail neutral with box-lug load terminal
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Conductor Range: #14–8 AWG
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Standards / Markings: UL 489, UL 943, UL 1699, HACR rated, SWD rated
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Reference Temperature: 104°F (40°C)
Common Applications
- 20 A residential branch circuits requiring simultaneous AFCI and GFCI protection.
- Kitchens, laundry areas, and similar locations where applicable codes require enhanced fault protection.
- Service replacements and safety upgrades in compatible ABB/GE Q-Line panels.
