Square D FAL Series Circuit Breakers
The Square D FAL series is a legacy F-Frame molded case circuit breaker rated for 100A frame size and 600VAC operation. FAL breakers use I-Line plug-in mounting and thermal-magnetic trip protection, making them ideal for lighting and appliance panelboards, branch circuit protection, and commercial distribution panels. The AllBreakerSales.com catalog includes the complete FAL lineup from 15A to 100A in both 2-pole and 3-pole configurations. Request a written quote to confirm the required catalog number and current availability.
Series Specifications
| Frame | F-Frame — 100A Frame |
|---|---|
| Amperage Range | 15A – 100A |
| Voltage | 600VAC |
| Poles | 2-Pole & 3-Pole |
| Interrupting Rating | 14kA @ 600V / 18kA @ 480V / 22kA @ 240V |
| Mounting | I-Line Plug-In |
| Trip Type | Thermal Magnetic |
History and Replacement Context
The Square D FAL series was part of the original I-Line product family introduced in the 1960s. The I-Line system revolutionized panelboard installation by allowing breakers to be plugged in and removed without tools. The FAL F-Frame remains one of the most widely installed legacy breakers in commercial buildings across the United States.
Typical Applications
- Lighting and appliance panelboards
- Branch circuit protection
- Commercial distribution panels
- Industrial branch circuits
- Motor branch circuit protection
Available Catalog Numbers
- FAL36015 — 15A, 3 pole, 600VAC
- FAL36020 — 20A, 3 pole, 600VAC
- FAL36025 — 25A, 3 pole, 600VAC
- FAL36030 — 30A, 3 pole, 600VAC
- FAL36035 — 35A, 3 pole, 600VAC
- FAL36040 — 40A, 3 pole, 600VAC
- FAL36045 — 45A, 3 pole, 600VAC
- FAL36050 — 50A, 3 pole, 600VAC
- FAL36060 — 60A, 3 pole, 600VAC
- FAL36070 — 70A, 3 pole, 600VAC
- FAL36080 — 80A, 3 pole, 600VAC
- FAL36090 — 90A, 3 pole, 600VAC
- FAL36100 — 100A, 3 pole, 600VAC
- FAL26015 — 15A, 2 pole, 600VAC
- FAL26020 — 20A, 2 pole, 600VAC
- FAL26025 — 25A, 2 pole, 600VAC
- FAL26030 — 30A, 2 pole, 600VAC
- FAL26035 — 35A, 2 pole, 600VAC
- FAL26040 — 40A, 2 pole, 600VAC
- FAL26045 — 45A, 2 pole, 600VAC