Eaton Molded Case Circuit Breaker 20A Three-Pole 480Y/277V AC Series C GHB Fixed Thermal Magnetic

Eaton Series C Complete Molded Case Circuit Breaker

Professional Three-Pole Circuit Protection Equipment

The Eaton Series C GHB Circuit Breaker delivers exceptional electrical power management and control performance for commercial and industrial electrical systems. This 20A three-pole molded case circuit breaker provides reliable electrical protection 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

Electrical Protection Performance

• 20 Ampere Rating - Provides precise current protection for medium-duty electrical circuits with reliable overcurrent detection and interruption
• Three-Pole Configuration - Simultaneous protection across all three phases for balanced electrical system protection and coordinated circuit interruption
• 14 kAIC Interrupt Rating at 480Y/277 Vac - High fault current interrupting capacity ensures safe electrical system protection during short circuit conditions
• Dual Voltage Capability - Operates at 480Y/277 Vac and 125/250 Vdc for versatile commercial and industrial electrical applications

Professional Installation & Protection

• Fixed Thermal and Magnetic Trip Technology - Combines thermal overload protection with magnetic short circuit protection for comprehensive electrical fault detection
• G-Frame Complete Breaker Design - Compact molded case construction with complete breaker assembly for straightforward professional installation
• UL Listed Certification - Meets rigorous electrical safety standards and code compliance requirements for professional electrical installations

Technical Specifications

Amperage Rating: 20A | Number of Poles: Three-pole | Voltage Rating: 480Y/277 Vac, 125/250 Vdc | 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 | 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 is de-energized and follow proper lockout/tagout procedures before installation
2. Mount the molded case circuit breaker in appropriate electrical panel or switchgear enclosure
3. Connect incoming and outgoing conductors to designated terminals following NEC wiring requirements
4. Ensure proper torque specifications are applied to all electrical connections
5. Verify proper phase sequence and voltage compatibility before energizing the circuit
6. Test circuit breaker operation and protective functions according to manufacturer specifications

Professional Applications

Ideal for:

• Commercial Electrical Systems - Office buildings, retail facilities, and commercial complexes requiring reliable three-phase circuit protection
• Industrial Power Distribution - Manufacturing facilities, processing plants, and industrial equipment requiring 480V three-phase protection
• Motor Control Centers - Protection for three-phase motors, drives, and industrial control equipment in MCC applications
• Switchgear Applications - Low voltage switchgear assemblies requiring molded case circuit breaker protection
• Electrical Panel Boards - Main distribution panels and sub-panels in commercial and industrial electrical systems
• Power Distribution Systems - Feeder circuits, branch circuits, and distribution protection in 480Y/277V electrical systems
• Electrical Safety Systems - Critical electrical protection for equipment and personnel safety in commercial facilities
• Load Center Protection - Three-phase load centers and electrical distribution equipment requiring overcurrent protection

Fixed Thermal-Magnetic Technology Advantage

The Series C GHB circuit breaker features advanced fixed thermal-magnetic trip technology that provides dual protection mechanisms. The thermal element responds to sustained overload conditions while the magnetic element provides instantaneous protection against short circuits and high fault currents. This dual-protection design ensures comprehensive electrical system safety and reliable operation across varying load conditions, making it ideal for demanding commercial and industrial electrical applications.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers the proven reliability and advanced technology that electrical professionals trust worldwide. Our molded case circuit breakers are engineered to meet the highest electrical safety standards with UL listing and comprehensive compliance certifications. From commercial office buildings to industrial manufacturing facilities, Eaton circuit breakers provide the dependable electrical protection that electricians, electrical contractors, and facility managers rely on for safe, efficient power distribution and electrical system protection.