What this SIRIUS contactor is and where it fits
The Siemens SIRIUS 3RT1036-1AN00 is a size S2 power contactor with screw-type terminals for the main current circuit, designed for switching motor loads in industrial control panels. It mounts on a 35 mm DIN rail per EN 50022, using either screw or snap-on fastening, and supports side-by-side mounting to save panel width. Its AC-2 rating at 400 V is 22 kW, covering wound-rotor or slip-ring motor applications where starting current is moderate. The AC-4 rating at 400 V is 41 A, which handles reversing or inching duty with frequent starts. At 500 V it is rated 30 kW, and at 690 V it is rated 11.4 kW. The contactor is rated for an operating temperature range of -25 °C to +60 °C, storage from -55 °C to +80 °C, and pollution degree 3. The front face carries IP20 protection; the terminal area is IP00, so it expects enclosure protection for the wiring zone.
Sourcing and lifecycle status
The RoHS compliance date is listed as 05/01/2012, meaning the design meets the substance prohibitions effective from that date.
Terminal sizing and wiring
The screw terminals accept solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²). Stranded conductors: 2x (0.75 to 25 mm²). Solid or stranded: 2x (0.75 to 16 mm²). At 40 °C the minimum permissible cross-section is 16 mm².
Mechanical and electrical endurance
Mechanical life is typical 10,000,000 operations. Maximum switching rates: AC-1 at 1,000 cycles/h, AC-2 at 400 cycles/h, AC-3 at 800 cycles/h, AC-4 at 300 cycles/h. Arcing time is 10 to 15 ms; the AC operating range is 0.8 to 1.1 at 50 Hz.