Siemens SIRIUS Control Contactors
SIRIUS Contactors - Simply Switch Safely
About 200 Million sold SIRIUS contactors serve customers worldwide. With SIRIUS you will discover the most comprehensive portfolio available on the market for switching any application. In terms of variance and performance range, hardly any wish remains unfulfilled. Switch motors with SIRIUS contactors and use them with real flexibility. Scalability of the devices and accessories as well as the choice of connection technology, such as simple tool-free and error-free installation using spring-cage technology, will put you ahead of the competition. The integration of SIRIUS contactors in engineering and selection tools support you in digitalisation.
 As the national distribution partner for Siemens, APS Industrial are your local partner for accessing their market leading portfolio.
Your benefits at a glance
Digital input directly on board
Digital input directly on board
Contactors with certified, digital F-PLC input for control from failsafe controllers, standard controllers or safety relays
Time, cost and space saving
Time, cost and space saving
• No additional coupling level
• Lower engineering and wiring costs
• Portfolio covers a wide range up to 250 kW
Simplified safety calculation
Simplified safety calculation
Contactors seamlessly certified in all sizes
Tamper protected
Tamper protected
• Cover for the seal (accessory)
• Contactor variant with permanently mounted auxiliary switches
SIRIUS Contactor Portfolio
Switch motors with SIRIUS contactors and use them with real flexibility. Scalability of the devices and accessories, as well as the choice of connection methods and coil options, means you can save assembly time, reduce panel space and minimize energy consumption.
Whether switching normal motors or high-efficiency motors (IE3), whether reversing or star-delta starting from the smallest to the largest power range, whether classic screwing or connecting using spring-cage technology. Motor contactors can do all this and much more. No drive is too small or no motor start-up too heavy.
SIRIUS contactors with certified F-PLC input are available for your application for triggering from failsafe controllers, standard controllers and safety switchgear from 18.5kW up to and including 250kW.
The fail-safe inputs make it possible to achieve SIL 2 (IEC 62061) or PL c (ISO 13849-1) with only one contactor. SIL 3 or PL e can be achieved by using two contactors in series.
The Safety Evaluation integrated in the TIA Selection Tool (TST) helps you to evaluate your machine quickly and safely, taking into account its safety functions (evaluation according to IEC 62061 and ISO 13849-1).
Specialists for other switching tasks, developed for your special needs.
Auxiliary contactors for control and auxiliary circuits.
Star-delta combinations
Star-delta combinations are the reliable solution for the staged startup of asynchronous machines. The starting current is reduced by one third compared to a delta startup. The required ramp-up time up to the rated speed in star startup can be set via a timing relay.
Reversing contactor assemblies
For safe and reliable changes in the direction of rotation of asynchronous motors, the pre-assembled SIRIUS reversing combinations from 3 kW to 55 kW (self-assembly kit from 3 kW to 250 kW) are available. They consist of two contactors of the same rating with an NC contact from 3 kW to 7.5 kW or an NO contact and an NC contact from 5.5 kW to 55 kW in the basic unit.
