Weidmueller TRS 12VDC 1COAU C1D2

The TRS 12VDC 1COAU C1D2 is likely an industrial relay or switch with a 12V DC operating voltage. It features a single changeover (1CO) contact, meaning the relay can switch between normally open and normally closed positions. The "AU" designation may refer to a specific feature or material type, while "C1D2" indicates the relay is certified for use in hazardous environments (Class 1, Division 2), where flammable gases or vapors may be present under certain conditions. For precise details, it’s best to refer to the manufacturer’s datasheet.