Pilot Device (Pushbutton & Indicator) · Electrical Components & Switchgear
The Siemens SIRIUS Act 3SU1 is a range of pilot devices such as pushbuttons, indicator lights and selector switches, covered by DNV certificate TAE00002XH. They are mounted in control panels, consoles and switchgear doors for operator control and signalling. They are used throughout shipboard electrical systems for starting, stopping and indicating equipment status.
| Function test of pushbuttons/E-stops | as part of routine control panel checks, typically every 6-12 months |
|---|---|
| Contact terminal inspection | annual |
| Gasket/seal condition check | annual, or at panel overhaul |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
Note: the catalog category and type for this entry ('Emergency Generator Set' / 'Emergency Power') do not match the manufacturer's actual product. Siemens SIRIUS ACT 3SU1 is a modular range of pushbuttons, indicator lights, selector switches and E-stops used to build control/pilot stations; it may be fitted on an emergency generator's local control panel, but is not itself a generator set. This entry addresses that actual product and should be re-verified against the DNV TA certificate (TAE00002XH) before publishing. Where fitted as an E-stop or remote emergency stop, class and flag-state surveys typically require function testing as part of the associated machinery's periodic safety system test.
Estimated lifetime: Electromechanical life for this class of pushbutton/switch is typically rated by the maker in switching cycles rather than running hours - confirm the specific rating against the Siemens SIRIUS ACT 3SU1 datasheet for the exact contact block fitted.
Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.
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