What It Is and Where It Fits
The Siemens SIRIUS 3RT1016-1AN22 is a Size S00 power contactor from the SIRIUS family, designed for switching motor loads in control panels. It mounts via screw and snap-on onto a 35 mm standard mounting rail per DIN EN 50022, occupying a 45 mm width on the rail. The contactor is rated for AC-2 duty at 4 kW at 400 V and AC-4 duty at 8.5 A at 400 V, covering slip-ring motor starting (AC-2) and plugging/reversing/inching (AC-4) applications. For AC-3 motor starting (squirrel-cage motors), it handles 4.5 kW at 500 V and 5.5 kW at 690 V.
Key Ratings and What They Mean for Your Panel
The AC-4 rating of 8.5 A at 400 V is the critical figure for applications involving frequent reversing or inching — the contactor must interrupt the motor's locked-rotor current, which is higher than running current. The AC-2 rating of 4 kW at 400 V covers slip-ring motor duty where the contactor makes and breaks the rotor circuit. Type 2 coordination (no welding after a short circuit) requires a 20 A gL/gG fuse upstream; Type 1 coordination (welding allowed but no fire risk) allows a 35 A gL/gG fuse. This matters for selectivity studies and SCCR compliance in the panel. Pollution degree 3 rating means the contactor is suitable for industrial environments with conductive pollution or dry non-conductive pollution that becomes conductive due to condensation — typical for unsealed control cabinets in factory floors. Operating temperature range of -25 to +60 °C covers most indoor industrial installations, including unheated warehouses and enclosures near process heat. The IP20 rating on the front and terminals means it is touch-safe but not protected against moisture ingress — keep it inside a cabinet. Mechanical endurance of 30,000,000 cycles indicates the contactor is designed for high-duty-cycle applications such as conveyor systems or packaging lines where the contactor cycles frequently.
Termination and Wiring
Both main current circuit and auxiliary/control circuit use screw-type terminals. The main terminals accept 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 wire, or AWG equivalents of 2x (20 to 16), 2x (18 to 14), or 1x 12. The auxiliary contacts share the same wire range. Side-by-side mounting is permitted without derating, allowing dense packing on the DIN rail. The 45 mm width per contactor means up to 6 units fit in a standard 270 mm wide enclosure section.
Lifecycle and Sourcing Reality
For BOM freeze or PCN watch purposes, the part carries the reference code Q per IEC 81346-2, indicating its function as a power switching device in the system architecture. RoHS compliance is indicated by the substance prohibitance date of 01.07.2006.
Dimensions and Physical Fit
The contactor measures 45 mm wide, 57.5 mm high, and 72 mm deep. These dimensions are critical for panel layout — the 72 mm depth includes the terminal projection, so ensure at least 80 mm clearance behind the mounting rail for wiring access.