GE THQB21100 - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The GE THQB21100 is a rugged, 2-pole bolt-on molded case circuit breaker engineered to protect your electrical system with unwavering reliability. With a 100A rating at 240V, it provides precise overcurrent and short-circuit protection for branch circuits in panelboards and load centers, keeping wiring safe and service interruptions to a minimum.

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection that stays reliable in demanding environments, reducing nuisance trips and ensuring consistent performance over time.
• Thermal-magnetic trip unit combines a thermal element for stable overload protection with a magnetic element for rapid response to short circuits, giving predictable, repeatable protection under varying load conditions.
• OEM-compatible design is crafted to work seamlessly with matching GE OEM load centers and panelboards, simplifying replacement and upgrades without compromising electrical safety or panel integrity.
• Versatile for multiple applications suitable for residential, commercial, and light industrial installations where dependable branch circuit protection is essential.

Key specifications at a glance help you confirm compatibility and plan your installation:

• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical contexts

• Panelboard upgrades and expansions where a robust, code-compliant 2-pole breaker is needed to protect main and subcircuits.
• Residential service panels requiring reliable protection for high-load feeders, HVAC suites, or multi-room circuits.
• Commercial light-industrial enclosures where vibration, dust, or mechanical stress can impact electrical connections, thanks to its secure bolt-on mounting.
• New installations that demand OEM compatibility to ensure seamless integration with existing GE load centers and panelboards.

Why choose the GE THQB21100 for your electrical protection needs?

• It delivers consistent protection performance through a thoughtfully engineered thermal-magnetic trip system, balancing nuisance-trip resistance with fast fault clearance.
• The bolt-on design reduces connection looseness and maintains a solid bus connection in environments prone to vibration or movement.
• OEM compatibility minimizes retrofit complexity and helps maintain warranty and performance expectations in GE ecosystem panels.

Practical installation and maintenance tips

• Verify panelboard compatibility with GE THQB-series devices before swapping or upgrading breakers.
• Ensure proper torque and seating when mounting the breaker to maintain the integrity of the bus connection and trip operation.
• Use in circuits where 100A protection aligns with conductor sizing and load calculations to optimize safety and performance.