What this relay does and where it fits
The Siemens 3RU2116-0KC0-ZW97 is a SIRIUS thermal overload relay in size S00, CLASS 10 trip, 690 V rated, 50 to 60 Hz, contactor mounting. The auxiliary contact set is rated across multiple voltages: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, and 0.3 A at 60 V, among others. These ratings cover both control-circuit and signal-feedback wiring — the 24 V and 120 V figures matter most for PLC inputs and relay coils in a typical panel.
Termination and wiring
The main current circuit uses spring-loaded terminals, accepting 2 × (0.5 to 2.5 mm²) solid or stranded conductors. The screwdriver shaft diameter is 3 mm with a 3.0 × 0.5 mm tip size for the auxiliary terminal screws. Mounting position is any orientation, and the relay is temperature-compensated from -40 to +60 °C, so it holds its trip curve across a wide ambient range.
Physical footprint and environment
Dimensions: 87 mm high, 45 mm wide, 70 mm deep. Operating temperature -40 to +70 °C; storage -55 to +80 °C. Integrated auxiliary switch.