ABB
100A 2-Pole 120/240V Bolt-On Circuit Breaker
- SKU:
- THHQB21100
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 0.75 LBS
Description
100A 2-Pole 120/240V Bolt-On Circuit Breaker
The ABB THHQB21100 is a Q-Line bolt-on miniature circuit breaker designed for dependable overcurrent protection in residential and commercial electrical distribution systems.
This 2-pole breaker is rated 100 amps at 120/240V AC and features a 22 kA interrupting rating for use in compatible ABB/GE load centers and lighting panelboards.
Key Features
- Q-Line THHQB bolt-on circuit breaker
- 100 amp current rating
- 2-pole configuration
- 120/240V AC voltage rating
- 22 kAIC interrupting capacity
- Thermal-magnetic trip protection
- Quick-make / quick-break mechanism
- Common trip bar for 2-pole operation
- Bolt-on mounting for secure bus connection
- Compact 1-inch-per-pole Q-Line design
Typical Applications
Ideal for residential and commercial panelboard applications requiring branch circuit protection. Commonly used in lighting panels, load centers, and power distribution systems where a 100A, 2-pole bolt-on breaker is required.
Construction Details
The THHQB21100 uses a compact molded case design with bolt-on mounting for a secure mechanical and electrical connection to compatible panel bus assemblies.
Thermal-magnetic trip elements provide overload and short-circuit protection, while easy-to-spot trip indication supports faster troubleshooting.
Designed as part of ABB’s Q-Line family, this breaker supports reliable operation in compatible ABB/GE residential and commercial distribution equipment.
Important Notes
Verify panelboard compatibility before installation.
Installation should be performed by qualified electrical personnel in accordance with applicable electrical codes.
Confirm voltage, amperage, interrupting rating, and mounting type match the application requirements.
