The integrated auxiliary contact is marked "for message 'Tripped'" — it changes state when the overload relay has operated, giving the control system a positive indication that the motor has been disconnected due to overload or phase loss. Rated insulation voltage of 690 V covers 400/480 V line-to-line systems with margin, and the auxiliary contact is rated for switching at common control voltages: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V.
Size S00 is the smallest SIRIUS overload relay frame, intended for direct mounting onto the corresponding SIRIUS contactor (contactor mounting) — no separate DIN-rail footprint needed, saving panel space. Main circuit connections are screw-type terminals accepting 2× (0.5…1.5 mm²) or 2× (0.75…2.5 mm²) solid or stranded wire; the screwdriver tip required is Pozidriv PZ2 with a 5–6 mm shaft diameter.
Substance prohibitance date of 10/01/2009 indicates RoHS compliance per EU directive 2002/95/EC, and the SIRIUS series carries CE and UL/CSA approvals as standard. MTTF of 2 280 years at high demand rate reflects the electromechanical simplicity of a thermal bimetallic design — this is a fit-and-forget component with no electronics to fail.