Overview
The Eaton EGB1125FFG is a Series G molded case circuit breaker engineered for industrial and commercial power distribution. This single-pole, 125-ampere breaker delivers proven protection in feeder and branch circuit applications up to 600Y/347 Vac, making it suitable for three-phase and single-phase systems.
Key Features
- Fixed thermal and fixed magnetic trip mechanism for stable, dependable overcurrent response
- EG-frame design fits standard Eaton molded case breaker enclosures and load centers
- Single-pole configuration for dedicated phase protection
- 600Y/347 Vac rated for industrial distribution systems
- Line and load terminals for flexible installation
- 50/60 Hz operation across North American and international grids
Technical Specifications
- Manufacturer: Eaton Cutler-Hammer
- Model: EGB1125FFG
- Frame Type: EG-Frame
- Poles: 1 (Single-Pole)
- Amperage Rating: 125 A
- Voltage Rating: 600Y/347 Vac
- Trip Type: Fixed Thermal, Fixed Magnetic
- Short-Circuit Capacity: 25 kAIC @ 240 Vac; 18 kAIC @ 480 Vac
- Terminals: Line and Load
- Frequency: 50/60 Hz
- Measurement System: Metric
Typical Applications
The EGB1125FFG is widely used in:
- Industrial feeder and branch circuit protection
- Commercial power distribution panels and load centers
- Motor control and machinery circuits
- Equipment protection in manufacturing facilities
- Three-phase and single-phase system installations
Compatibility & Replacements
Compatible With
- Eaton Series G molded case breaker enclosures and panelboards
- Standard EG-frame mounting assemblies
- 600Y/347 Vac industrial distribution systems
- North American three-phase power environments
- Line and load bus configurations
Replaces / Drop-In Replacement For
- Other Eaton Series G EG-frame single-pole breakers with equivalent ratings
- Legacy industrial molded case breakers requiring 125A, 1-pole protection
- Verify compatibility with your specific panelboard or enclosure before ordering
Works With
- Eaton molded case breaker accessory kits (auxiliary contacts, trip coils, etc.)
- Standard industrial control systems and power distribution architectures
- Remote operating mechanisms compatible with EG-frame breakers
- Time-delay and coordination schemes in coordinated feeder protection systems
