SIRIUS 3RT12 and 3TF6 vacuum contactors
Siemens SIRIUS 3RT12 and 3TF6 vacuum contactors
For high switching frequency and high power ratings – switching gap in vacuum instead of air.
In the vacuum interrupter the arc is extinguished very quickly and contact erosion is low. Vacuum contactors therefore achieve many times the electrical service life of air-break contactors of the same rating and are suited to applications with constant switching, such as presses, cranes and large pumps.
Parent category: Siemens SIRIUS 3RT contactors.
Product benefits
- Proven SIRIUS 3RT range from Siemens – available worldwide and maintained over decades
- Consistent modular system: auxiliary switches, surge suppressors and link modules fit across sizes
- Screw or spring-loaded terminals – spring-loaded saves assembly time and is vibration-proof
- Versions with electronic operating mechanism reduce holding power and work over a wide voltage range
- Approvals to IEC and UL/CSA, so the same plant can be operated in Europe and North America
