Our SIRIUS contactor range offers everything for switching industrial loads:

Contactors and ready-to-use contactor assemblies for switching motors and special applications.
Whether as single devices, as modules for load feeders or for installation in low-voltage distribution boards/switchboards .
Siemens offers suitable contactors for every application as well as fully assembled contactor assemblies. What makes our SIRIUS devices unique: Their high contact reliability, extremely
long service life and the possibility of using them even in the
most extreme ambient conditions.

SIRIUS 3RR2 Monitoring Relays
The 3RR2 monitoring relays not only serve the monitoring of
motors or other loads, but additionally also facilitate optimum
current monitoring of the entire system or driven process. This
for example allows for the early detection and signaling of load
shedding or motor overloads. The 3RR2 monitoring relay for
current monitoring is directly integrated in the load feeder. It is
simply plugged onto the contactor. Also available with IO-Link
1 connection.