General Electrics THQB2170ST1 - 70 A, 2-Pole Bolt-On Circuit Breaker | AmpState

Engineered for dependable branch circuit protection, the General Electric THQB2170ST1 is a 70A, 2-pole bolt-on molded case circuit breaker designed to shield panelboards and loadcenters from overcurrent and short circuits. Its bolt-on mounting delivers a rigid, vibration-resistant bus connection, helping maintain consistently reliable protection even in environments with movement or equipment vibration.

Why this breaker stands out

• Secure bolt-on mounting ensures a solid, vibration-resistant connection to the bus, reducing connection issues that can lead to nuisance trips or intermittent protection.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding quickly to short circuits and preventing prolonged overloads, helping you avoid damage to wiring and connected equipment.
• Compatibility with OEM loadcenters and panelboards—designed to fit and function with matching General Electric components, providing a seamless integration in existing systems.
• Versatile application suitable for residential, commercial, and light industrial installations, making it a practical choice for a wide range of protective needs.

Where it shines in real-world use

Use the THQB2170ST1 to protect branch circuits feeding lighting, outlets, HVAC, motors, and other critical loads in panelboards and loadcenters. Ideal for electrical service upgrades, new construction, or retrofit projects where a robust, easy-to-install two-pole solution is required.

Compatibility and installation

Part Number: THQB2170ST1 — 70A, 2-pole, bolt-on molded case circuit breaker. Designed for secure mounting in General Electric OEM loadcenters and panelboards. When installing, pair this breaker with matching GE panel components to ensure optimum performance and coordinated protection across the system.

Technical snapshot

• Manufacturer: General Electrics
• Part Number: THQB2170ST1
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 70A
• Poles: 2
• Mounting: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection

Practical guidance for optimal results

• Ensure you’re using matching OEM loadcenters and panelboards to maintain full protection coordination and correct trip behavior.
• Periodically inspect mounting and bus connections to verify the bolt-on hardware remains tight and vibration resistance is preserved.
• Use this 70A two-pole breaker in circuits that require simultaneous disconnection of both conductors, enhancing safety during maintenance or fault conditions.

Ready to upgrade or outfit a new panel with reliable, purpose-built overcurrent protection? The General Electric THQB2170ST1 two-pole bolt-on breaker from AmpState delivers precise protection, solid mounting, and broad compatibility for residential, commercial, and light industrial electrical systems.