Description
The Square D FA14050A is a 1-pole thermal magnetic molded case circuit breaker engineered for dependable overcurrent and short-circuit protection. Rated at 50 amps and 480Y/277V, it offers an 18kA interrupting capacity to ensure safety in demanding power distribution systems. Featuring an I-Line plug-in connection, this breaker is ideal for use in commercial and industrial panelboards requiring high performance and reliability.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Protection |
| Part Number |
FA14050A |
| Subcategory |
Molded Case Circuit Breakers |
| Series |
FA |
| Type |
Thermal Magnetic |
| Rated Current |
50 A |
| Rated Voltage |
480Y/277 V AC |
| Interrupting Capacity |
18 kAIC @ 277 V |
| Number of Poles |
1 |
| Trip Functions |
Long-Time and Instantaneous (LI) |
| Connection Type |
I-Line Style Plug-In |
| Mounting Mode |
I-Line |
| Protection Type |
Overload and Short Circuit |
| Certifications |
UL Listed, CSA Certified |
| Operating Temperature |
40 °C |
| Dimensions (H x W x D) |
6.4 x 1.5 x 4.13 in |
| Frame Type |
FA |
| Country of Origin |
Mexico |
| Weight |
4 lb (1.81 kg) |
Information About FA14050A
The FA14050A is part of Square D’s FA Series, a robust line of molded case circuit breakers designed for efficient installation and long-term performance. Its I-Line plug-in mounting system allows for quick connection and removal in I-Line panelboards, minimizing downtime during maintenance. Built with a thermal-magnetic trip unit, it provides precise long-time and instantaneous trip protection against overloads and faults. The breaker is UL Listed and CSA Certified, making it suitable for a wide range of industrial, commercial, and institutional electrical systems.
Key Features:
- Thermal-Magnetic Protection: Provides both long-time and instantaneous trip response for overload and short-circuit protection.
- Rated Current: 50A continuous current capacity for single-pole circuits.
- Voltage Rating: Supports operation at 480Y/277V AC for high-capacity systems.
- Interrupting Capacity: 18kAIC at 277V ensures safe interruption under fault conditions.
- I-Line Mounting: Plug-in design simplifies installation and removal in compatible panelboards.
- Certified Compliance: Meets UL and CSA standards for safety and performance.
- Compact Construction: Durable molded case with a height of 6.4 inches for space-efficient installation.
- Temperature Rating: Operates reliably at ambient temperatures up to 40°C.
The FA14050A delivers the reliability and precision required for modern electrical distribution systems in industrial and commercial environments.
