GE THHQB21100 100A 2P Circuit Breaker, Bolt-On | AmpState

Meet the GE THHQB21100 100A 2-Pole Bolt-On Circuit Breaker—engineered for durable, dependable protection in everyday electrical work. This GE-built unit is designed to slot into standard panelboards, load centers, and electrical distribution systems, delivering reliable overcurrent protection when it matters most.

• Bolt-On mounting for a secure, vibration‑resistant installation in compatible GE panels.
• Two-pole configuration with a 100 A rating to provide coordinated protection across both live conductors in feeders and main circuits.
• Replacement and BOM alignment—Ideal for replacement projects where keeping the original part number is important, helping you maintain accurate bill of materials.
• Field-friendly and ready to stock so technicians can quickly swap in a proven GE part, minimizing downtime on critical circuits.
• AmpState availability—This part is available from AmpState, with support to verify fit if you’re unsure about compatibility (message us and we’ll help confirm).

Designed for panelboards, load centers, and electrical distribution networks, the THHQB21100 is a practical choice for electricians, facilities managers, and maintenance teams who value reliability and straightforward serviceability. Use it in replacement scenarios, spare stock to maintain BOM integrity, or as a trusted component in new installations that require robust 100 A, 2-pole protection.

Key specifications

• Manufacturer: GE
• Part Number: THHQB21100
• Type: Circuit Breaker
• Amperage: 100 A
• Poles: 2
• Mounting: Bolt-On
• Applications: Panelboards, Load Centers, Electrical Distribution

If you’re unsure about compatibility with your exact panel model, reach out—we can help confirm fit and ensure you get the right replacement fast.