Overview
The GE TEY120 circuit breaker is a Type TEY molded case breaker designed for reliable performance in 277V single-phase electrical systems. This 1-pole, 20-amp unit features quick-make/quick-break action and easy-to-spot trip indication, making it a standard choice for commercial lighting control and industrial power distribution applications where compact, bolt-on mounting is required.
Key Features
- Single-pole (1P) design for single-phase (1PH) applications
- Quick-make/quick-break mechanism with common trip bars
- Thermal-magnetic trip protection against overloads and short circuits
- Compact one-inch-wide form factor for space-constrained installations
- Easy-to-spot trip indication for safety and reliability
- Compatible with optional auxiliary contacts and shunt trip accessories
Technical Specifications
- Amperage: 20A
- Voltage Rating: 277V AC
- Poles: 1
- Interrupting Capacity: 14kA @ 277V
- Trip Mechanism: Thermal-Magnetic (Long-Time and Instantaneous)
- Mounting: Bolt-On
- Series: Q-Line Type TEY
- Operating Temperature Range: Up to 40°C
- Dimensions: 5.25″ H × 1.0″ W × 3.06″ D
- Weight: 26.68 lbs (per unit)
- Wire Compatibility: 14 to 10 AWG copper
Typical Applications
The TEY120 is widely used in commercial lighting control circuits, industrial power distribution systems, and grounded 480Y/277V systems. Its bolt-on mounting base makes it suitable for varied applications as a lug-lug breaker in panelboards and switchgear. The SWD and HID ratings allow it to handle inrush currents from high-intensity discharge fixtures.
Compatibility & Replacements
Compatible With
- GE A-Series lighting panelboards
- GE AE-Series panelboards
- GE AS-Series panelboards
- 480Y/277V grounded electrical systems
- Grounded 277V single-phase circuits
Replaces / Drop-In Replacement For
The GE TEY120 is a direct replacement for other Type TEY 1-pole 20-amp 277V breakers. Verify exact compatibility with your specific panelboard or system integrator before ordering to ensure proper fit and function.
Works With
- GE auxiliary switch kits (factory-installed option)
- GE shunt trip accessories
- Standard bolt-on breaker frames and load centers
- Commercial and industrial electrical distribution equipment
