Motor protection for small drives — what the 0.14-0.20 A range covers
The 3RU6116-0BB0: The relay mounts directly onto a Siemens contactor of size S00, with the fastening method listed as 'contactor mounting' — no separate DIN rail footprint needed, which saves panel width when the contactor is already on the rail.
Terminal wiring and torque — screw terminals for main and auxiliary
Finely stranded with core-end processing uses the same cross-sections. Tightening torque for the screw-type main terminals is 0.8...1.2 N·m — a standard small terminal screwdriver setting. Auxiliary and control circuit terminals are also screw-type, accepting 2× (20...16) AWG or 2× (18...14) AWG — the smaller gauge range reflects the lower current of the aux contacts. Per-pole dissipation is 1.6 W. In a densely packed enclosure, that heat adds up — allow side spacing of 6 mm to grounded parts per the spec.
Environmental and compliance — RoHS, altitude, temperature
Relative humidity during operation is 0 to 90 % non-condensing. Installation altitude is limited to 2000 m above sea level without derating. Shock resistance per IEC 60068-2-27 is 8 g for 11 ms. The substance prohibitance date of 05/01/2012 indicates RoHS compliance from that date forward.