General Electrics THHQB32100ST1 - 100 A, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the General Electrics THHQB32100ST1—a 100A, 3-pole bolt-on molded case circuit breaker designed to protect your panelboards and load centers from overcurrent and short circuits with dependable, repeatable performance.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays put in demanding electrical spaces.
• Thermal-magnetic trip unit delivers stable protection by reacting to both continuous overloads and sudden short circuits, ensuring predictable tripping behavior when it matters most.
• 3-pole configuration ideal for three-phase systems common in commercial and light industrial environments.
• 100A rating provides robust branch-circuit protection for mid-range loads while accommodating startup surges typical of motors and equipment.
• OEM-compatible design engineered to work smoothly with matching load centers and panelboards, simplifying replacements and upgrades.
• Molded-case construction built for durability in residential, commercial, and light industrial applications, helping your electrical system run reliably over time.

Technical snapshot

• Manufacturer: General Electrics
• Part Number: THHQB32100ST1
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who benefits from this breaker? Electrical professionals and facility managers who need reliable three-phase protection in panelboards and load centers without sacrificing installation simplicity. It’s well-suited for upgrading older panels, protecting feeders to motors and controllers, or serving as a robust main/feeder breaker in light commercial setups.

Why choose this over generic breakers? The THHQB32100ST1 combines a secure bolt-on mount, a thermal-magnetic trip for precise protection, and OEM-compatible design to minimize installation headaches and downtime. Its rugged molded-case construction is built to withstand the vibrations and temperature variations common in real-world environments, helping your electrical system stay protected under load.

Practical tips for use:

• Confirm panelboard compatibility with OEM counterparts to ensure a seamless fit and wiring alignment.
• Use in three-phase applications where stable protection is critical for equipment like air handlers, pumps, and conveyors.
• Keep a spare compatible breaker on hand for quick swaps during routine maintenance or upgrades to minimize downtime.