Overview
The Square D FA26020AC is a dependable molded case circuit breaker designed for industrial control and power distribution applications. This 2-pole thermal magnetic molded case circuit breaker has a current rating of 20 Amps and a voltage rating of 600VAC, 250VDC. The FA series offers I-Line style plug-in mounting with an interrupting capacity of 18kA@480V, making it suitable for a wide range of electrical systems requiring dependable fault protection.
Key Features
- Thermal magnetic trip mechanism for reliable overcurrent and short-circuit protection
- Long time and instantaneous trip functions
- I-Line style plug-in mounting for quick installation and removal
- Load-side lug terminals for direct connection to distribution systems
- A & C phase circuit configuration options
- Standard industry certifications for molded case breakers
Technical Specifications
The FA26020AC delivers consistent performance across standard industrial voltages with multiple interrupting ratings tailored to different system requirements:
- Interrupting rating of 25kAIC at 240V, 18kAIC at 480V, 14kAIC at 600V
- Operating temperature: 40°C ambient
- Trip range: 20A nominal, 275A hold, 600A magnetic trip
- Frame size: FA (Type FA)
- Weight: 4.0 lbs
Typical Applications
The Square D FA26020AC is commonly deployed in:
- Industrial panelboards and switchboards requiring 20A branch protection
- Motor control centers and load distribution equipment
- Commercial electrical systems rated up to 600V
- Facility upgrades and retrofit installations where I-Line compatibility is required
- Systems requiring both thermal (overload) and magnetic (short-circuit) protection
Compatibility & Replacements
Compatible With
- Square D I-Line panelboards and switchboards
- Square D I-Line motor control centers
- Standard 600V industrial electrical distribution systems
- Schneider Electric I-Line compatible enclosures (Square D parent company)
Replaces / Drop-In Replacement For
The Square D FA26020AC directly replaces earlier versions of the FA series 2-pole 20A breaker in I-Line installations. Verify mounting style and lug configuration with your system integrator before ordering, as some I-Line panelboards may support multiple mounting options.
Works With
- Square D I-Line distribution centers
- Industrial 600V three-phase and single-phase systems
- Thermal-magnetic trip coordination systems
- Standard circuit breaker accessories (shunt trips, auxiliary contacts, UV releases)
