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Load Feeders for Any Application
In our 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.
For easy assembly of load feeders, comprising circuit breakers (motor or starter protection) and other SIRIUS switching devices from the modular system, such as contactors, soft starters or semiconductor switching devices, link modules are available which can be used to combine the devices with spring-loaded or screw-type connections at lightning speed.
3RU, 3RB overload relays or 3RR2 monitoring relays can also be directly integrated in the load feeder by fitting them to the contactor - for even better system monitoring.
The function modules for interfacing to the PLC offer an attractive alternative to the parallel wiring method. The modules with interfaces for AS-Interface or IO-Link are plugged into the 3RT2 contactors without the need for any tools. With the help of standardized profiles, the load feeders can easily exchange operating data, such as Ready signal, ON/OFF and group warning/fault with the PLC. Diagnostics data is even available - which enhances transparency in the plant.
Efficient and Flexible Power Distribution
In the main circuit too, the components of the modular SIRIUS system are wired up extremely easily. The SIRIUS 3RV infeed system is a particular highlight - you can use it to configure compact power infeed and distribution systems for branches up to 7.5 kW (at 400 V) extremely quickly.
Single circuit breakers and even complete load feeders with screw-type or spring-loaded terminals are simply clicked into the infeed system. Without any time-consuming wiring and the associated risk of error, a compact power supply unit can be generated in this manner at the flick of a wrist. "Click in and its ready to go!"
As an alternative, you can also wire it up in the conventional manner: With parallel wiring, 3-phase busbars or the 8US busbar adapter which can be used to directly mount SIRIUS load feeders on a 60 mm busbar system.
These selection options give you much more freedom in the implementation of customized solutions.