GE THHQB1120ST1 20A 1P 120V Circuit Breaker, Bolt-On | AmpState

The GE THHQB1120ST1 is a bolt-on circuit breaker designed to deliver reliable protection in panelboards, load centers, and electrical distribution systems. With a 20 A rating, 1-pole configuration, and 120 V operation, it provides straightforward, dependable control for standard branch circuits while fitting neatly into compact spaces.

Key benefits for installers and facilities teams:

• Bolt-on mounting enables faster, secure installation and simplifies service work.
• Perfect for retrofit and maintenance projects where preserving the exact part number reduces documentation ambiguity and protects inventory accuracy.
• 1-pole, 120V design is ideal for common lighting and receptacle circuits and other 120V branch protections.
• GE THHQB1120ST1 part number continuity supports consistent drawings, specs, and service records across upgrades and repairs.
• Available from AmpState ensures ready access to this specific breaker when downtime matters.

Practical use cases:

• Retrofit installations in legacy panelboards where maintaining the same part number streamlines ordering, compatibility, and warranty considerations.
• Maintenance planning for modular distribution systems, reducing the risk of mismatched replacements and simplifying inventory management.
• Emergency or scheduled replacements in 120V circuits that require dependable, quick seating and reliable protection.

Compatibility and support:

Need help confirming fit? AmpState provides guidance to verify compatibility with your panel or distribution setup. Send a message with your application details and we’ll help you confirm the best match for your system.