GE THHQB2120ST1 20A 2P 240V Circuit Breaker, Bolt-On | AmpState

The GE THHQB2120ST1 is a bolt-on, two-pole circuit breaker designed to safeguard circuits in panelboards, load centers, and electrical distribution systems. With a 20-amp rating and 240-volt operation, this unit provides dependable protection for larger branch circuits and multi-wire configurations within GE-based installations.

Why this bolt-on design matters for retrofit and maintenance projects: a secure bolt-on mounting ensures a solid, vibration-resistant connection that stays put in dynamic electrical environments. This is especially helpful when the part number needs to stay consistent across service intervals or when stocking spare components for ongoing maintenance planning.

• Bolt-On mounting provides a stable, field-friendly installation in compatible GE panelboards and load centers.
• Two-pole, 20 A at 240 V protection for shared-neutral or multi-wire branch circuits common in residential and light commercial setups.
• Part-number consistency supports retrofit work and service planning by keeping the exact GE breaker model in stock.
• AmpState availability ensures this specific breaker can be sourced when you need reliable replacements.
• Trusted GE engineering built to perform reliably within electrical distribution networks over time.

Ideal use cases

• Replacing a failed or aging GE breaker in existing panelboards or load centers without altering the overall electrical design.
• Retrofitting or stocking spare breakers for facilities where maintaining the exact part number simplifies maintenance logistics.
• Planning preventive maintenance for electrical distribution systems that rely on GE components and need predictable, available stock from AmpState.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

• What you get: One GE THHQB2120ST1, 20 A, 2P, 240 V bolt-on circuit breaker.
• Available from AmpState, ready to support your retrofit or ongoing maintenance plan.