SIRIUS power contactor, Size S00 — 110 VDC coil, spring-loaded terminals
The front and terminal blocks carry IP20 protection, sufficient for enclosed panel environments where accidental finger contact is the main risk.
At 500 V and 690 V the power rating holds at 5.5 kW, which tells you the contactor is thermally limited by the S00 frame size, not by voltage creepage at these levels. The magnet coil draws 3.3 W during both closing and holding — a DC coil that holds at the same power as it picks means no economizer circuit is needed, but it also means the coil stays warm continuously. Verify the 110 VDC supply can deliver the inrush without droop; the holding power is low enough for most 24 VDC-derived supplies stepped up through a DC-DC converter. Short-circuit coordination is specified with Type 1 and Type 2 requirements: Type 2 (no damage to the contactor) calls for a 20 A gL/gG fuse; Type 1 (contactor may need replacement after fault) allows a 35 A gL/gG fuse. This matters when the panel designer is coordinating with upstream motor-protective breakers or fuses.
Mounting and wiring integration
Side-by-side mounting is permitted, so multiple contactors can pack tightly on the rail — the 45 mm width per unit is the only horizontal space consumed. The spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded conductors, or 2x (24 to 14 AWG). Strip length is not listed in the spec, but standard practice for spring-cage terminals on this class is 8–10 mm.