GFB140 - 40 Amp Circuit Breaker

GFB140 - 40 Amp Circuit Breaker

Upgrade your electrical safety with the Thomas & Betts GFB140, a premium 40 Amp single-pole circuit breaker designed to deliver reliable ground-fault protection in any environment. Whether safeguarding a home bathroom, commercial laundry room, or industrial workspace, this breaker detects unintended current leaks and shuts down circuits fast—helping prevent shocks, fires, and costly equipment damage. Built to exceed industry standards, the GFB140 combines trustworthy performance with compact convenience, making it the go-to choice for electricians and DIYers alike.

Key Features and Benefits

• High Fault-Handling Power: Rated at 10 kA interrupting capacity to manage unexpected surges and provide dependable protection for your system.
• Compact & Lightweight: At just 1″ x 1″ x 1″ and 0.5 lbs, the GFB140 fits neatly into tight panel spaces and is easy to install even in confined areas.
• Dual Voltage Compatibility: Supports both 120 V and 240 V systems for versatile use in a wide range of residential and light-commercial applications.
• Trusted Manufacturer: Engineered by Thomas & Betts, a respected name in electrical hardware, ensuring high quality and consistent performance.

Technical Specifications

• Brand: Thomas & Betts
• Frame Type: GFB
• Amperage Rating: 40 Amp
• Voltage Rating: 120 / 240 Volt
• Interrupt Rating: 10 kAIC
• Poles: Single-pole
• Dimensions (L×H×W): 1″ × 1″ × 1″
• Weight: 0.5 lb

Material Compliance and Certifications

• Compliance: Manufactured to meet or exceed rigorous electrical safety standards, the GFB140 is fully compliant with North American ground-fault protection requirements. For specific certifications (UL, CSA, etc.), contact the manufacturer directly—ensuring your installation aligns with the latest code mandates.

Suitability

• Bathrooms, kitchens, laundry rooms – areas prone to moisture and accidental shock risk
• Outdoor fixtures and circuits that require added safety in exposed environments
• Light commercial spaces—workshops, utility rooms, and break areas—where both 120 V and 240 V systems are in use