GE THHQB1150 - 50 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

GE THHQB1150 is a 50A, 120V, 1-pole bolt-on molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a focus on reliability and ease of installation, this breaker is built to perform in demanding environments while maintaining precise protection performance over time.

What makes the GE THHQB1150 stand out

Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping to prevent loosening and ensuring consistent electrical contact in panels subjected to movement or vibration. This design translates to fewer maintenance concerns and stable protection for the circuits it guards.

Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload sensing with instantaneous magnetic trip for short circuits. The result is thoughtful coordination between protecting conductors and preventing unnecessary trips in variable load conditions.

OEM compatibility is a core advantage — the THHQB1150 is designed to fit matching GE load centers and panelboards, making replacements and upgrades straightforward without mismatched fits or wiring changes.

Key specifications

• Manufacturer: GE
• Part Number: THHQB1150
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 50A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and load centers

Ideal use cases

• Residential electrical panels needing a reliable 50A protection for high-demand circuits.
• Commercial panels or light industrial setups where dependable overcurrent protection is essential for safety and uptime.
• Retrofits or replacements in GE OEM load centers and panelboards, where compatibility and quick installation matter.

Practical benefits and outcomes

Choosing the GE THHQB1150 means opting for a breaker that blends robust mechanical mounting with precise electrical protection. The bolt-on design reduces installation challenges in retrofit projects, while the thermal-magnetic trip ensures fast response to faults without excessive nuisance trips. For service technicians and facility managers, this translates to fewer service interruptions and a straightforward path to compliant, code-aligned protection for critical circuits.

Stocked by AmpState, the GE THHQB1150 brings reliable, OEM-compatible protection within reach for rapid replacements, panel upgrades, or new installations. If you need a dependable, easy-to-install 50A, 120V, 1-pole solution that integrates cleanly with GE panelboards and load centers, this breaker is a clear fit for residential, commercial, and light industrial applications.