Square D LAL Series Circuit Breakers
The Square D LAL series is a legacy L-Frame molded case circuit breaker rated for 400A frame size and 600VAC operation. LAL breakers cover the 125A to 400A range for large motor protection, industrial distribution, and feeder circuit protection.
Series Specifications
| Frame | L-Frame — 400A Frame |
|---|---|
| Amperage Range | 125A – 400A |
| 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 LAL L-Frame was part of the original I-Line product family. The 400A L-Frame was designed for main distribution and large feeder applications in commercial and industrial facilities.
Typical Applications
- Large motor protection
- Industrial distribution panels
- Feeder circuit protection
- Main distribution applications
- Commercial building mains
Available Catalog Numbers
- LAL36400 — 400A, 3 pole, 600V
- LAL36125 — 125A, 3 pole, 600VAC
- LAL36150 — 150A, 3 pole, 600VAC
- LAL36175 — 175A, 3 pole, 600VAC
- LAL36200 — 200A, 3 pole, 600VAC
- LAL36225 — 225A, 3 pole, 600VAC
- LAL36250 — 250A, 3 pole, 600VAC
- LAL36300 — 300A, 3 pole, 600VAC
- LAL36350 — 350A, 3 pole, 600VAC
- LAL26125 — 125A, 2 pole, 600VAC
- LAL26150 — 150A, 2 pole, 600VAC
- LAL26175 — 175A, 2 pole, 600VAC
- LAL26200 — 200A, 2 pole, 600VAC
- LAL26225 — 225A, 2 pole, 600VAC
- LAL26250 — 250A, 2 pole, 600VAC
- LAL26300 — 300A, 2 pole, 600VAC
- LAL26350 — 350A, 2 pole, 600VAC
- LAL26400 — 400A, 2 pole, 600VAC