GE THQB2140ST1 - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

GE THQB2140ST1 is a 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and loadcenters. Rated at 40 A and 240 V, this unit delivers reliable overcurrent and short-circuit protection where it matters most. Available through AmpState, it combines solid hardware with precise protection performance to keep electrical systems safe and running smoothly. Key advantages that matter in the field

• Secure bolt-on mounting: Delivers a rigid, vibration-resistant bus connection that minimizes loose contacts and arcing, even in setups with equipment that experiences movement or vibration.
• Thermal-magnetic trip unit: Provides stable, repeatable protection by quickly responding to overloads while maintaining consistent performance across varying temperatures and loads.
• 2-pole, 40 A, 240 V: Straightforward two-wire protection for multipole circuits, ideal for residential panels, commercial boards, and light industrial distributions.
• OEM compatibility: Designed to pair with matching GE OEM loadcenters and panelboards, ensuring a proper fit, reliable bus connection, and predictable protection characteristics.
• Versatile application: Suited for branch circuit protection in homes, small businesses, and light industrial installations where robust, code-compliant protection is essential.

Who this is for and practical use cases - Home renovations or new panel installations where a dependable 2-pole breaker is needed to feed multi-wire branch circuits or shared neutral configurations. - Commercial electrical rooms and small retail spaces requiring consistent protection for lighting, outlets, and equipment circuits. - Light industrial environments where vibration or movement is a concern and a secure, bolt-on connection helps prevent nuisance trips due to loose bus connections. Technical snapshot

• Manufacturer: GE
• Part Number: THQB2140ST1
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40 A
• Voltage Rating
: 240 V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Typical Application: Branch circuit overcurrent and short-circuit protection

Why this matters in real-life installations - Bolt-on breakers like the THQB2140ST1 offer a more rigid connection in panels that experience vibration or heavy equipment operation, reducing the risk of connection issues over time. - The thermal-magnetic design provides a balanced approach to protection: fast trips on severe short circuits and stable response to gradual overloads, helping protect wiring, devices, and downstream equipment. - Compatibility with GE OEM loadcenters means installers can expect a predictable fit and reliable performance without aftermarket surprises, simplifying replacements and upgrades. Tips for effective use - Verify the panelboard or loadcenter is the correct GE OEM match before installation to ensure optimal alignment with bus stabs and mounting hardware. - When replacing an existing breaker, confirm branch circuit loads and conductor sizing align with 40 A protection to avoid nuisance trips or under-protection of circuits. - Use in ventilation-friendly installations; the molded case design supports consistent performance in typical indoor panel environments. In short, the GE THQB2140ST1 delivers durable, code-appropriate protection for residential, commercial, and light industrial applications with a secure bolt-on mount, reliable thermal-magnetic trip, and clear compatibility with GE loadcenters. Choose this breaker for a dependable, long-lasting solution that keeps electrical systems safe and compliant.