The best way to switch with SIRIUS Contactors

Four SIRIUS 3RV2 motor starter protectors/circuit breakers aligned after size


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  • sold SIRIUS contactors convince our customers worldwide. Because 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 digitalization.

Technical specifications for Contactors

Industry Mall

SIRIUS Contactor Portfolio

Power contactors for motors

Power contactors for switching motors

Switching of electric drives or motors: a classic product with a decades-old functional principle interpreted in a modern and future-oriented way: these are our contactors, a generalist for switching motors.


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 or direct digital control. Our motor contactors can do all this and much more. No drive is too small or no motor start-up too heavy.

Contactors for other loads

Contactor relays and miniature contactors

Contactor relays and miniature contactors

Auxiliary contactors for control and auxiliary circuits.

Highlights at a glance

Reliable switching and protection of large currents

SIRIUS 3RT contactors up to 2,650 A - the perfect combination for wind turbines or converters.

Efficient wiring of switchgear

Which connection technology do you use for your switchgear? Have you already tried out spring-cage technology? Now compare conventional screw technology with modern spring-cage technology. We will show you how to connect and install your switchgear quickly and without errors.