Eaton Molded Case Circuit Breaker 40A Three-Pole 480Y/277V Series C GHB Fixed Thermal-Magnetic G-Frame

Eaton Molded Case Circuit Breaker 40A Three-Pole 480Y/277V Series C GHB Fixed Thermal-Magnetic G-Frame

Professional Industrial Circuit Protection Equipment

The Eaton Series C GHB Molded Case Circuit Breaker delivers exceptional electrical power protection and control performance for industrial and commercial electrical systems. This 40A three-pole circuit breaker with 480Y/277 Vac and 125/250 Vdc rating provides reliable electrical protection with fixed thermal-magnetic trip technology designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.

Professional Features & Benefits

Advanced Circuit Protection Performance

• 40 Ampere Rating with Three-Pole Configuration - Provides comprehensive electrical protection for three-phase industrial and commercial power distribution systems with reliable current handling capacity
• 480Y/277 Vac and 125/250 Vdc Voltage Rating - Versatile voltage compatibility for both AC and DC applications in industrial electrical installations and commercial power systems
• 14 kAIC Interrupt Rating at 480Y/277 Vac - Superior fault current interrupting capability ensures safe electrical system protection during short circuit conditions
• Fixed Thermal-Magnetic Trip Technology - Combines thermal overload protection with magnetic short circuit protection for comprehensive electrical fault detection and system safety

Professional Installation & Protection

• G-Frame Complete Breaker Design - Compact molded case construction with complete breaker assembly for straightforward professional installation in electrical panels and switchgear
• Series C Engineering Excellence - Eaton's proven Series C technology delivers consistent electrical performance and long-term reliability for demanding industrial applications
• UL Listed Certification - Meets rigorous electrical safety standards and complies with Federal Specifications Classification W-C375B for professional electrical installations

Technical Specifications

Amperage Rating: 40A | Voltage Rating: 480Y/277 Vac, 125/250 Vdc | Number of Poles: Three-pole | Interrupt Rating: 14 kAIC at 480Y/277 Vac | Series: Series C | Circuit Breaker Type: GHB | Trip Type: Fixed thermal, fixed magnetic | Frame: G-frame | Frequency Rating: 50/60 Hz | Circuit Breaker Frame Type: Complete breaker | Dimensions: 4" H x 3" W x 2.63" D | Weight: 1.75 lb | Certifications: UL Listed | Compliance: Federal Specifications Classification W-C375B

Installation & Usage

1. Verify electrical system compatibility with 40A three-pole configuration and 480Y/277 Vac voltage requirements
2. Ensure proper electrical panel or switchgear mounting space for G-frame molded case circuit breaker dimensions
3. Connect three-phase conductors to appropriate terminals following NEC wiring methods and manufacturer specifications
4. Verify proper grounding and bonding connections for electrical safety and code compliance
5. Test circuit breaker operation and trip functions to confirm proper electrical protection performance
6. Label circuit breaker clearly for identification and maintenance purposes in electrical distribution system

Professional Applications

Ideal for:

• Industrial Power Distribution - Three-phase motor control centers, industrial electrical panels, and manufacturing facility power systems requiring 40A circuit protection
• Commercial Electrical Systems - Office buildings, retail facilities, and commercial properties with 480Y/277V electrical distribution requirements
• Motor Control Applications - Protection for three-phase motors, HVAC equipment, and industrial machinery in commercial and industrial installations
• Switchgear Integration - Component for low-voltage switchgear assemblies and electrical distribution equipment in industrial facilities
• Electrical Panel Boards - Branch circuit protection in commercial and industrial electrical panel boards and load centers
• Power Distribution Centers - Feeder protection and branch circuit control in electrical distribution systems and power control centers
• Industrial Machinery Protection - Electrical protection for manufacturing equipment, process control systems, and automated industrial machinery
• Commercial Building Systems - Lighting circuits, HVAC systems, and electrical equipment protection in commercial building electrical installations

Fixed Thermal-Magnetic Technology Advantage

The fixed thermal-magnetic trip technology combines the benefits of thermal overload protection for sustained overcurrent conditions with instantaneous magnetic protection for short circuit faults. This dual protection mechanism ensures comprehensive electrical system safety while providing reliable performance in demanding industrial and commercial applications, making it the preferred choice for professional electrical installations.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton leads the industry in intelligent power solutions and electrical protection technology. The Series C molded case circuit breakers represent decades of engineering excellence, rigorous UL testing, and proven field performance. Trusted by electricians, electrical contractors, and facility professionals worldwide, Eaton delivers the reliability, safety, and advanced technology that modern electrical systems demand, backed by comprehensive technical support and global manufacturing excellence.