Contactors and contactor assemblies Switching with SIRIUS means high contact reliability, prolonged endurance and usability in extreme conditions.

For comprehensive technical information, see the manuals/operating instructions,https://support.industry.siemens.com/cs/ww/en/ps/16132/man.

Use of 3RT contactors, 3RT and 3TF vacuum contactors, reversing contactor assemblies and contactor assemblies for star-delta (wye-delta) starting with IE3/IE4 motors

For the use of 3RT contactors, 3RT and 3TF vacuum contactors, reversing contactor assemblies and contactor assemblies for star-delta (wye-delta) starting in conjunction with highly energy-efficient IE3/IE4 motors, please observe the information on dimensioning and configuring, see Application Manual "SIRIUS Controls with IE3/IE4 Motors", https://support.industry.siemens.com/cs/ww/en/view/94770820.

SUVA-certified safety contactors

We offer special safety contactors for use in safety-related applications. They have NC contacts with mirror contact functionality, and they are SUVA-certified. This means they have non-removable auxiliary switch blocks and cannot be operated manually. They thus comply with the requirements for use in safety applications.