Siemens SIRIUS 3RT1016-1AP01-ZW95 — Power Contactor, Size S00, 230 V Coil
The Siemens SIRIUS 3RT1016-1AP01-ZW95 is a size S00 power contactor with a 230 V 50/60 Hz coil, rated for switching motor loads up to 4 kW at 400 V in AC-3 duty. Its 45 mm width and screw-and-snap-on mounting onto 35 mm DIN rail per DIN EN 50022 make it a direct fit for standard control panels. The IP20 front and terminal protection mean it is suited for enclosed panel installation where accidental finger contact is prevented.
Key Ratings and What They Mean for Fit
The AC-3 rating of 4 kW at 400 V defines the maximum motor load this contactor can switch under standard starting conditions — that is the figure to match against your motor nameplate, not the AC-1 resistive rating. The AC-4 rating of 8.5 A at 400 V covers inching or plugging duty where the contactor makes and breaks stalled rotor current; if your application requires frequent reversing, this is the limiting value. The coil draws its rated voltage at 230 V 50/60 Hz; the operating range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz means the coil holds in across a sag down to 184 V at 50 Hz or 195.5 V at 60 Hz, and drops out below that — important for brownout coordination. The mechanical life of 30 million operations is typical for a S00 frame; the electrical life will be lower and depends on the switched current and duty cycle. Pollution degree 3 (conductive pollution) means the contactor is rated for industrial environments where occasional condensation occurs — no additional conformal coating required for most panel builds.
Mounting and Wiring
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 50022. Side-by-side mounting is permitted with a 6 mm clearance to adjacent devices on either side — no extra spacing needed for thermal derating at rated current. The main circuit uses screw-type terminals accepting 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded conductors; AWG equivalents are 2x (20 to 16), 2x (18 to 14), or 1x 12. For type 2 coordination (no weld under short circuit), use a gL/gG fuse rated 20 A; for type 1 coordination (weld allowed but no fire risk), a 35 A fuse is specified. The contactor stands 57.5 mm tall and 72 mm deep — verify clearance behind the DIN rail for the depth, especially in shallow enclosures. Operating temperature range is -25 to +60 °C; maximum installation altitude is 2 000 m without derating.