Siemens SIRIUS 3RT1016-1AF01-ZW96 — power contactor, S00 frame, 24 VDC coil
It carries a 24 VDC coil and is rated for a 10 A operational current at 24 V, with a switching capacity that scales across voltages — 6 A at 230 V, 3 A at 400 V, and motor power ratings of 4.5 kW at 500 V and 5.5 kW at 690 V. The AC-4 rating of 8.5 A at 400 V defines its capability for frequent motor reversing or inching duty, which is the more demanding cycle for contactor life. Mounting is via screw or snap-on onto a 35 mm DIN rail per DIN EN 50022, and the 45 mm width and 57.5 mm height fit the S00 footprint that panel builders know for high-density layouts.
The 10 A rating at 24 V is the maximum continuous current for the main contacts in AC-12 duty (resistive loads). For motor loads, the relevant figure is the AC-3 rating — the contactor is sized for motors up to 4.5 kW at 500 V or 5.5 kW at 690 V, which covers common 3-phase induction motors in the 5.5 kW class on 400 V supplies. The AC-4 rating of 8.5 A at 400 V is the one to watch for reversing or plugging applications; it is lower than the AC-3 value because the contactor must interrupt locked-rotor current on every cycle. The coil operates at 24 VDC with a tolerance band of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz — meaning the coil holds in reliably from about 19.2 V to 26.4 VDC. IP20 protection on the front and terminals means the contactor is finger-safe when mounted in a closed panel. This is a standard specification for the S00 frame and must be observed in the panel design to maintain the SCCR rating.
Side-by-side mounting is permitted with 6 mm spacing to adjacent devices for heat dissipation. The screw terminals accept two conductors per pole — up to 1.5 mm² for both, 2.5 mm² for both, or a single 4 mm² — which simplifies daisy-chaining of control wiring. The IP20 finger-safe terminals allow live working in a panel without additional shrouding, provided the panel door is closed.