Siemens SIRIUS 3RT1016-1AB01 — Integrator's Spec Recap
The Siemens SIRIUS 3RT1016-1AB01 is a size S00 power contactor rated for a 24 V 50 Hz coil, switching motor loads up to 4.5 kW at 500 V. The AC-3 rating at 400 V is 4 kW — that's the number for standard squirrel-cage motor starting. Front and terminal faces carry IP20 protection, so it's suited for enclosed panel installation where accidental finger contact is the concern. Pollution degree 3 means it handles conductive pollution in industrial environments — standard for control panels near production floors.
Terminal & Wiring Detail
Both main and auxiliary circuits use screw-type terminals. The main contact wiring accepts solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). AWG equivalents are 2x (20 to 16), 2x (18 to 14), and 1x 12. Auxiliary contacts share the same wire range. For fuse coordination, type 2 coordination (no damage) requires a 20 A gL/gG fuse; type 1 coordination (damage allowed, no fire risk) allows a 35 A gL/gG fuse.
Coil Operating Range & Ratings
The coil is rated at 24 V at 50 Hz, with an operating range of 0.8 to 1.1 times rated voltage at 50 Hz, and 0.85 to 1.1 at 60 Hz. The coil draw at various control voltages: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, and 3 A at 400 V — these are inrush or holding values depending on the circuit design.