Square D FHL Series Circuit Breakers
The Square D FHL series is the highest-interrupting F-Frame molded case circuit breaker, rated for 100A frame size and 600VAC operation. FHL breakers provide 65kA interrupting capacity at 480V and 100kA at 240V.
Series Specifications
| Frame | F-Frame — 100A Frame |
|---|---|
| Amperage Range | 15A – 100A |
| Voltage | 600VAC |
| Poles | 2-Pole & 3-Pole |
| Interrupting Rating | 25kA @ 600V / 65kA @ 480V / 100kA @ 240V |
| Mounting | I-Line Plug-In |
| Trip Type | Thermal Magnetic (Highest Interrupting) |
History and Replacement Context
The FHL series represents the top of the Square D F-Frame interrupting hierarchy. Designed for applications close to large transformers or in facilities with very high available fault current.
Typical Applications
- High-fault industrial distribution
- Branch circuits near large transformers
- Commercial buildings with high available fault current
- Industrial branch circuit protection
Available Catalog Numbers
- FHL36015 — 15A, 3 pole, 600VAC
- FHL36020 — 20A, 3 pole, 600VAC
- FHL36025 — 25A, 3 pole, 600VAC
- FHL36030 — 30A, 3 pole, 600VAC
- FHL36035 — 35A, 3 pole, 600VAC
- FHL36040 — 40A, 3 pole, 600VAC
- FHL36045 — 45A, 3 pole, 600VAC
- FHL36050 — 50A, 3 pole, 600VAC
- FHL36060 — 60A, 3 pole, 600VAC
- FHL36070 — 70A, 3 pole, 600VAC
- FHL36080 — 80A, 3 pole, 600VAC
- FHL36090 — 90A, 3 pole, 600VAC
- FHL36100 — 100A, 3 pole, 600VAC
- FHL26015 — 15A, 2 pole, 600VAC
- FHL26020 — 20A, 2 pole, 600VAC
- FHL26025 — 25A, 2 pole, 600VAC
- FHL26030 — 30A, 2 pole, 600VAC
- FHL26035 — 35A, 2 pole, 600VAC
- FHL26040 — 40A, 2 pole, 600VAC
- FHL26045 — 45A, 2 pole, 600VAC