What the ratings mean for fit
The 3RU2116-0CC1: Class 10 means the relay trips within 10 seconds at 7.2× the set current — fast enough to protect standard induction motors during a locked-rotor event without nuisance tripping on normal starts. The S00 frame (45 mm wide, 102 mm tall, 79 mm deep) is the smallest Siemens overload relay footprint; it mounts stand-alone in any position, so it fits tight panels where every millimeter counts. Spring-loaded terminals accept 2× (0.5 to 2.5 mm²) solid or stranded wire, no ferrules required — speeds up wiring on a build.