GE THQB2120 - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

GE THQB2120 — a 20A, 240V, 2-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit protection for panelboards and load centers. Built to withstand the demands of residential, commercial, and light industrial environments, this breaker combines precise protection with rugged practicality.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays-tight through routine startup and load changes.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining a sensitive thermal element for overcurrent with a fast magnetic trip for short-circuits, reducing nuisance trips and protecting connected equipment.
• 20A, 240V, 2-pole design suitable for typical circuits that require two-pole protection and 240V operation, including multi-wire branch circuits in compliant panel setups.
• OEM-compatible fit with matching GE and OEM load centers and panelboards, ensuring proper alignment, bus connection, and reliable performance without modification.
• Versatile application ideal for new installations, panelboard retrofits, and service upgrades across residential, commercial, and light industrial projects.

This bolt-on molded case circuit breaker is purpose-built to prevent overcurrent and short-circuit events at the distribution level. By pairing a robust physical mounting with a precise thermal-magnetic protection mechanism, it helps you maintain system reliability, minimize downtime, and safeguard wiring, devices, and occupants.

• Amperage rating: 20A
• Voltage rating: 240V
• Poles: 2
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker
• Manufacturer: GE
• Part number: THQB2120
• Applications: Branch circuit protection for panelboards and load centers

Who should consider the GE THQB2120? electricians and service technicians working on GE-compatible panels, facilities managers upgrading distributed circuits, and homeowners replacing aging breakers in residential panels where reliable 20A, 240V two-pole protection is needed. When you choose this bolt-on solution, you’re selecting a component designed to endure vibrations, temperature shifts, and routine electrical loads while delivering consistent protection performance.

Practical tips for getting the most from your THQB2120: confirm compatibility with your panelboard or load center, torque mounting screws to the manufacturer’s specification to maintain a secure connection, and pair with correctly rated feeders and branch circuits to ensure coordinated protection across the distribution system. With GE THQB2120, you gain a dependable, easy-to-install solution that keeps electrical systems protected and running smoothly.