Overview
The ABB THHQL2145 is a 45 amp, 2-pole Q-Line plug-in circuit breaker for compatible ABB and legacy GE residential and commercial load centers. It is rated 120/240V AC with 22kAIC interrupting capacity and fixed long-time and instantaneous thermal-magnetic protection.
Key Features
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Protection: Fixed long-time and instantaneous thermal-magnetic overcurrent protection.
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Installation: Q-Line plug-in mounting with box lugs for 8-3 AWG copper or aluminum conductors.
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Compatibility: Designed for compatible ABB and legacy GE Q-Line load centers; verify panel labeling before installation.
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Performance: 45A, 2-pole, 120/240V AC, 22kAIC, reverse-feed suitable, HACR rated, and listed under UL File E11592.
Specifications
- Manufacturer: ABB
- Model: THHQL2145
- Series / Frame: Q-Line
- Amperage: 45 A
- Poles / Phase: 2 Pole / 1 Phase
- Voltage: 120/240 V AC
- Interrupting Rating: 22 kAIC
- Protection: Thermal Magnetic, fixed LI
- Mounting: Plug-In
- Terminal: Box Lugs
- Wire Range: 8-3 AWG copper or aluminum
- Temperature Rating: 104°F (40°C)
- Certifications / Markings: UL 489 and HACR Rated; UL File E11592
- GSA Compliance: No
- Color: Black
Common Applications
Used for 240V branch-circuit protection in compatible load centers, including HVAC equipment and other two-pole residential or light-commercial loads within the breaker and panel ratings.
