GE Miniature Circuit Breaker: THQB, 45 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
The GE THQB1145 is a bolt-on miniature circuit breaker from the THQB & THHQB Series, rated at 45 A, 120/240V AC, single phase, with a 10kA interrupting capacity at 120/240V AC. Designed for use in lighting panels…
SKU 3G-OTH-128098
Need installation or engineering help?
Ask a question
Product Description
The GE THQB1145 is a bolt-on miniature circuit breaker from the THQB & THHQB Series, rated at 45 A, 120/240V AC, single phase, with a 10kA interrupting capacity at 120/240V AC. Designed for use in lighting panels, this GE-branded breaker provides overcurrent protection in a compact bolt-on form factor.
Frequently Asked Questions
What is the GE THQB1145 miniature circuit breaker used for?
The GE THQB1145 is a bolt-on miniature circuit breaker designed for overcurrent protection in lighting panels. It is rated at 45 A, 120/240V AC, single phase, with a 10kA interrupting capacity. Typical applications include commercial and industrial lighting distribution systems where reliable branch-circuit protection is required.
What are the specifications of the GE THQB1145 circuit breaker?
The GE THQB1145 is a single-pole, bolt-on miniature circuit breaker rated at 45 A, 120/240V AC, with a 10kA interrupting capacity at 120/240V AC. It is part of the THQB & THHQB Series and is designed for use in GE lighting panels. The manufacturer part number is THQB1145.
Where to buy the GE THQB1145 circuit breaker worldwide?
3G Electric supplies the GE THQB1145 miniature circuit breaker worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this GE breaker to any country.
How to install the GE THQB1145 circuit breaker?
To install the GE THQB1145, ensure the panel is de-energized. Align the bolt-on terminals with the bus bar and tighten securely to the specified torque. Verify the 45 A rating matches the circuit requirements. Follow standard electrical safety practices and consult the panel manufacturer's instructions for proper mounting and wiring.
Used in
Common applications for GEGE Products
3G Electric supplies GE thqb & thhqb series, bolt-on ge miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















