SIRIUS Size S00 Contactor for Motor Switching
The Siemens 3RT2317-1AF00 is a SIRIUS-brand contactor in size S00, rated for 5.5 kW motor switching at 400 V in AC-3 duty. The coil pulls 110 VAC at both 50 and 60 Hz, so it works on either mains frequency without a coil change. Rated operational current at 400 V is 12 A.
Width is 45 mm, depth 73 mm, height 58 mm — that's a compact footprint for a 5.5 kW contactor, leaving room on the rail for an overload relay and a terminal block. Main and auxiliary contacts use screw-type terminals. Solid or stranded wire: 2x (0.5…1.5 mm²), 2x (0.75…2.5 mm²), and up to 2x 4 mm² for the main circuit. That covers standard motor and control wiring sizes.
