3RU21160GB0 — Siemens SIRIUS 3RU2 Thermal Overload Relay
This Size S00/0 thermal overload relay is a motor-protection accessory designed for direct attachment to Siemens SIRIUS 3RT2 contactors in motor-control center or distributed-contactor assemblies. The 3RU2116 base number places it in the class-10 trip characteristic family with a 0.45–0.6 A adjustable setting range.
Engineering verification checklist
- Confirm load FLA falls within the 0.45–0.6 A relay setting window
- Verify the mating contactor (e.g., 3RT2 series) is Size S00/S0 with compatible auxiliary terminal block
- Check that bulk-pack quantity matches panel-build ordering and kitting requirements
- Confirm ROHS3 compliance requirement is met for the target jurisdiction
- Confirm wiring to overload relay's NC/NO auxiliary contacts routes correctly to the controlling PLC or motor-starter circuit
- Confirm the relay reset method (manual or automatic) is appropriate for the application classification
- Verify that the overload relay's Class 10 trip curve aligns with motor locked-rotor withstand time (IEEE 841 or equivalent if applicable)