General Electric | THHQB1140 | Circuit Breaker | 40A | 1-Pole | 240V | Bolt-On

Meet the General Electric THHQB1140 circuit breaker — an OEM-grade protection device designed for 240-volt circuits. With a 40A rating and 1-pole, this bolt-on breaker delivers reliable overcurrent protection in a compact, easy-to-install package. Built for maintenance, retrofit, and replacement projects, it seamlessly integrates into compatible GE panels where exact specifications matter.

Key specifications

• Amperage: 40A
• Poles: 1-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part Number: THHQB1140

Why this GE breaker stands out

• OEM reliability: Designed by General Electric to match the performance and fit of original equipment in GE panels, helping ensure consistent protection and electrical compatibility.
• Secure bolt-on mounting: The bolt-on design provides a robust, vibration-resistant connection ideal for panels experiencing routine servicing or installations where a firm, permanent fit is essential.
• Targeted for retrofits and replacements: When you’re upgrading or restoring a panel, using the exact part reference THHQB1140 minimizes compatibility risk and simplifies sourcing.
• Clear electrical protection for 240V circuits: Perfect for branch circuits that require a 40-amp rating, helping prevent overloads and wiring damage in both residential and light commercial settings.

Use cases and ideal customers

• electricians performing panel maintenance or upgrades who need a precise 40A, 1-pole, 240V bolt-on breaker
• homeowners tackling replacement projects in GE load centers where exact part match is essential
• retrofit projects upgrading older panels to ensure continued code-compliant protection

Installation and compatibility guidance

Before ordering, confirm fit and ratings for your panel. The THHQB1140 part number is the best reference for compatibility, helping you avoid mismatches in amperage, pole count, or mounting style. This breaker is intended for bolt-on panels that support GE’s 1-pole, 240V configurations. If your panel requires a different mounting method or a multi-pole device, choose the appropriate model to maintain proper protection and warranty coverage.

Practical tips for best results

• Power down the main disconnect and test for zero voltage before servicing any breakers.
• Verify panel model and bus type to ensure the bolt-on mechanism seats correctly and remains secure over time.
• Keep a small inventory of OEM GE replacement breakers like the THHQB1140 to simplify future maintenance and minimize downtime.

Choose the General Electric THHQB1140 for dependable, spec-accurate circuit protection that aligns with your GE panel’s design and performance expectations. It’s the thoughtful choice for maintenance, retrofit, and replacement scenarios where exact compatibility matters and long-term reliability is non-negotiable.