Description
SQUARE D Miniature Circuit Breaker QO3805273 Reliable Power
High interrupting capacity and reliable thermal-magnetic protection for demanding industrial applications, ensuring equipment safety and uptime.
| Brand | Square D |
| Model | QO3805273 |
| Voltage | 480V AC |
| Country of Origin | United States |
| Weight | 0.5 kg |
| Dimensions | 75 mm x 25 mm x 80 mm |
| Warranty | 5 years |
| Certifications | UL 489, CSA C22.2 No. 5, NEMA AB-1 |
| SKU / MPN | QO3805273 |
| What’s in the box | 1 x Square D QO3805273 Miniature Circuit Breaker, 1 x Installation Guide |
| Amperage Rating | 80 A |
| Number of Poles | 3 |
| Interrupting Capacity | 65 kA at 480V AC |
| Trip Type | Thermal-magnetic |
| Mounting Type | DIN rail or panel mount |
| Operating Temperature Range | -20°C to 60°C |
Key benefits: Robust construction, high short-circuit withstand, easy installation, and compatibility with Square D QO load centers.
Typical applications: Industrial motor control centers, commercial distribution panels, and heavy machinery protection.
Order number: SQUARE D Miniature Circuit Breaker QO3805273 Reliable Power
Lifecycle: Active production with long-term support and replacement parts available.
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. –
Good price for such a robust HMI. Technical documentation was clear.