SIRIUS Innovations IEC Combination Starters are available as pre-assembled 3RA2 assemblies or field assembled from components. These devices offer switching, starting and monitoring as well as high short circuit and overload protection functionality in a compact footprint and can be mounted on din rail or the Siemens Infeed Bus System and Fast Bus.
In the SIRIUS range, you will find the right load feeders (for direct, reversing or star-delta (wye-delta) starters) – fused or fuseless – comprising easily combined single units (e.g. by fitting the appropriate function modules to contactors) or as pre-wired and tested complete units with spring-loaded or screw-type connections. More than 40,000 tested combinations cover almost every application case.
The 3RA2 fuseless load feeders consist of the 3RV2 motor starter protector and the 3RT2 electromechanical contactor. The devices are electrical and mechanically connected using pre-assembled assembly kits (link modules, wiring kits and standard mounting rail or busbar adapters).
Advantages at a glance:
- 4 sizes up to 55 kW
- Also available as pre-wired and tested complete units
- More than 40,000 tested combinations
- Quick and simple installation of feeders thanks to link modules
- Uniform accessories
- Screw and spring-type connection technology available
Using Siemens over the competition can result in more than 26% or more cabinet footprint savings. The SIRIUS Modular System offers proven and optimized modularity and maximum flexibility which allows components and accessories to be assembled with ease.
SIRIUS Innovations IEC Combination Starters are approved for UL 508 Type F applications with horsepower ratings up to 75 HP @ 480V and current ratings of 100A. SIRIUS Innovations products are highly efficient and save on power consumption. S0 & S2 contactors with UC coils reduce the coil holding power consumption by up to 92%.
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