What it is and what it does
The Siemens SIRIUS 3RT1016-1AR01 is a size S00 power contactor, rated for switching loads up to 10 A at 24 V DC on the auxiliary contacts. It is a current-production part, per the lifecycle status. The contactor is designed for screw and snap-on mounting onto a 35 mm standard mounting rail per DIN EN 50022, making it a direct fit for standard industrial control panels. It carries a 24 V DC coil and is rated for main circuit switching at 50/60 Hz, with a rated operational voltage of 415 V at 50 Hz and 415 V at 60 Hz. The contactor's mechanical life is typical 30,000,000 operations.
Key ratings and what they mean for your panel
The 10 A rating at 24 V DC is the maximum continuous current the auxiliary contacts can carry in DC-12 or DC-13 duty. For AC loads, the contactor is rated 6 A at 230 V and 3 A at 400 V — these are the currents you design your motor branch circuit around, not the DC figure. For motor switching specifically: at AC-2 duty (slip-ring motors) at 400 V, it is rated 4 kW; at AC-4 duty (plugging/inching) at 400 V, it is rated 8.5 A. The AC-4 rating is the one that governs for reversing or jogging applications — the contactor sees the full locked-rotor current on each operation. The contactor occupies a 45 mm width on the DIN rail, with a depth of 72 mm and height of 57.5 mm. Side-by-side mounting is permitted, with a required 6 mm clearance at the side. The front face carries an IP20 rating, and the terminals are also IP20 — this is touch-safe for panel interiors but not for washdown environments. The main current circuit uses screw-type terminals, accepting solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²). For AWG, it accepts 2x (20 to 16), 2x (18 to 14), and 1x 12. This covers most panel wiring up to 4 mm² without needing lug adapters.
Environmental and coordination specs
The contactor is rated for operation from -25 °C to +60 °C and at altitudes up to 2,000 m without derating. Pollution degree 3 means it is suitable for industrial environments with conductive pollution — typical for control panels near manufacturing floors. For short-circuit protection: with Type 2 coordination (no damage to the contactor), use a gL/gG fuse rated 20 A. With Type 1 coordination (contactor may need replacement after fault), use a 35 A fuse. These are the values for the main circuit; the auxiliary circuit follows the 10 A DC rating.