The Siemens SIRIUS 3RT5966-4EA1 is a terminal cover designed specifically for the 3RT1.6 and 3RT1.7 contactor frames. It's the factory-specified finger-protection shroud that goes over the power and control wiring terminals after termination, keeping live parts behind a physical barrier during panel access.
Compliance documentation
Substance prohibitance date is 2006-07-01.