The Siemens 3RU1116-0EB0-ZW96 is a SIRIUS 3RU1 overload relay rated for 0.28 to 0.4 A, with a Class 10 trip characteristic and one normally-open plus one normally-closed auxiliary contact. It is the Size S00 form factor, designed to mount directly onto the corresponding S00 contactor — common in compact motor starter assemblies for conveyor drives, pump panels, and small fan starters where the panel depth is tight.
The 0.28-0.4 A setting range covers fractional-horsepower motors typically found on small pumps, agitators, or ventilation fans. The 1NO+1NC auxiliary gives you one feedback signal to the PLC and one hardwired interlock for the contactor coil circuit.
This is the multiunit packing variant — 64 pieces per case, intended for OEMs or panel builders who are populating multiple starter assemblies in a single build run. The relay snaps onto the S00 contactor without additional wiring for the load circuit; only the control wiring for the auxiliary contacts needs to be terminated at the terminals.