In Siemens 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 preassembled assembly kits (link modules, wiring kits and standard mounting rail or busbar adapters).
Advantages at a glance
2 sizes up to 18.5 kW
Width: 45 mm
Modular system for load feeders with motor circuit breakers, contactors, overload relays and current monitoring relays
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