Description
Square D Circuit Breaker AL400LA Durable Power Protection
Durable power protection with high interrupt capacity for industrial and commercial applications.
| Brand | Square D |
| Model | AL400LA |
| Voltage | 240/480V AC |
| Country of Origin | United States |
| Weight | 1.8 kg |
| Dimensions | 10.2 x 5.1 x 8.9 cm |
| Warranty | 2 years limited |
| Certifications | UL Listed, CSA Certified, IEC 60947-2 |
| SKU / MPN | AL400LA |
| What’s in the box | Circuit breaker, Mounting hardware, Instruction manual |
| Ampere Rating | 400A |
| Pole Count | 3-pole |
| Interrupt Rating | 65 kA |
| Thermal Magnetic Trip | Yes |
| Terminal Type | Box lug |
| Enclosure Type | NEMA 1 |
Key benefits: High short-circuit current rating, Thermal-magnetic trip unit for overload and short-circuit protection, Durable construction for long service life
Typical applications: Industrial machinery, Commercial buildings, Data centers, Manufacturing plants
Order number: Square D Circuit Breaker AL400LA Durable Power Protection
Lifecycle: 10 years
Our Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don't worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitive pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.





James P. –
Fast shipment and genuine product. Will add this seller to our approved vendor list.