Description
The Square D FJA140203 is a single-pole molded case circuit breaker designed for reliable overcurrent protection in commercial and industrial power distribution systems. Rated at 20 amps and 277VAC, this PowerPacT breaker features I-Line plug-in mounting and high interrupting capacity for demanding electrical environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Molded Case Circuit Breaker |
| Part Number |
FJA140203 |
| Subcategory |
1-Pole |
| Series |
PowerPacT |
| Type |
FJA |
| Circuit Breaker Type |
Molded Case |
| Amperage |
20 Amp |
| Voltage Rating |
277 VAC |
| Poles |
1 |
| Phase |
1 |
| Mounting Type |
I-Line Style Plug-In |
| Protection Type |
Thermal Magnetic |
| Trip Functions |
LI – Long-Time and Instantaneous |
| Interrupting Rating |
65kAIC at 480V |
| Application |
Power Distribution / Lighting |
| Weight |
2.6 lb |
Information About FJA140203
The FJA140203 is part of Square D’s PowerPacT FJA series, engineered for compact design and high-performance circuit protection. Built on an F-frame platform, it is designed for seamless integration into Square D I-Line panelboards and switchgear. This breaker supports single-phase systems and incorporates long-time and instantaneous trip functions to protect against overloads and short circuits. Its high interrupting rating makes it suitable for installations with elevated available fault currents.
Key Features:
- 20 Amp Current Rating: Provides precise protection for branch and feeder circuits.
- 1-Pole Configuration: Designed for single-phase electrical applications.
- 277VAC Voltage Rating: Suitable for lighting and commercial distribution systems.
- High Interrupting Capacity: Rated at 65kAIC at 480V for robust fault protection.
- Thermal-Magnetic Protection: Ensures dependable overload and short-circuit response.
- LI Trip Functions: Long-time and instantaneous tripping enhances system safety.
- I-Line Plug-In Mounting: Allows fast installation and simplified maintenance.
The FJA140203 delivers the reliability and precision required for PowerPacT I-Line distribution and branch circuit protection applications.
