Frequent opening and closing operations reduce the useful lifespan of conventional switching devices. Especially for such applications with high switching frequencies, Siemens now offers a solution with SIRIUS that also significantly reduces cost and space requirements.

Switching with SIRIUS means high contact reliability and increased service life and application options under extreme conditions.

For the purposes of electrical isolation, amplification and signal matching, coupling relays and transformers are required between the control system and the peripherals.