Description
Siemens 3RT1266-6AP36
High-performance vacuum contactor for demanding medium-current switching in industrial applications with extended electrical life
| Brand | Siemens |
| Model | 3RT1266-6AP36 |
| Voltage | 1000V AC / 1500V DC |
| Country of Origin | Germany |
| Weight | 12.5 kg |
| Dimensions | 350x250x220 mm |
| Warranty | 6 months |
| Certifications | CE, UL, CSA, IEC 60947-4-1 |
| SKU / MPN | 3RT1266-6AP36 |
| What’s in the box | Vacuum contactor unit, mounting hardware, auxiliary contact block, instruction manual |
| Rated Current | 500 A (AC-1) |
| Contact Type | Vacuum, 3-pole |
| Coil Voltage | 24V DC |
| Switching Category | AC-1, AC-3, AC-4, DC-1, DC-3 |
| Mounting | Plate mounting, M10 bolts |
| Operating Temperature | -25°C to +55°C |
Key benefits: Vacuum technology for extended contact life, high current switching capacity, low maintenance requirement, compact design for large current ratings, proven Siemens SIRIUS reliability, excellent arc quenching performance
Typical applications: Capacitor bank switching, transformer switching, large motor control centers, medium-voltage distribution panels, industrial heating systems, renewable energy inverters
Lifecycle: Active product, long-term availability guaranteed by Siemens SIRIUS portfolio
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.






Richard S. –
Good quality sensor, accurate readings. Will order more for our production line.