SIRIUS S00 power contactor — 3RT1015-1AV02-1AA0
The Siemens 3RT1015-1AV02-1AA0 is a SIRIUS power contactor in the compact S00 frame size, designed for switching motor loads in control panels. It mounts via screw or snap-on onto 35 mm standard mounting rail per DIN EN 50022, fitting a 45 mm wide footprint that leaves room for adjacent devices in a crowded enclosure. Rated for AC-2 duty at 3 kW on a 400 V, 50 Hz supply, this contactor handles slip-ring motor starting and reversing loads where the switching frequency stays moderate. The AC-4 rating at 400 V reaches 6.5 A, covering inching and plugging applications that demand higher contact wear margins. The screw-type main terminals accept solid or stranded conductors from 2x (0.5 to 1.5 mm²) up to max 2x (0.75 to 4 mm²), with AWG equivalents of 2x (20 to 16) and 2x (18 to 14). Front and terminal protection is IP20, so the contactor is finger-safe once installed but expects enclosure protection against water ingress. Operating temperature spans -25 to +60 °C during operation, with a maximum operating altitude of 2 000 m. The contactor is rated for pollution degree 3, meaning it tolerates conductive pollution in industrial atmospheres without conformal coating.
Switching capacity across voltages
The 3RT1015-1AV02-1AA0 carries a 10 A rated operational current at AC-12 (resistive loads) at 24 V. For DC switching, it handles 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — useful for pilot-duty control circuits or small DC motor brakes. At 230 V AC it switches 6 A, and at 400 V AC it switches 3 A.
Coordination and protection
For type 1 coordination (no damage but contactor may need replacement after a fault), the required upstream fuse is gL/gG rated 35 A. For type 2 coordination (contactor remains operational after a fault), the fuse drops to 20 A gL/gG. These values let the panel builder size the branch circuit protection without oversizing.