Siemens 3RT2017-2XJ42-0LA2 — SIRIUS Contactor, Size S00, 24 VDC Coil
It carries a 24 VDC coil with spring-type terminals, rated to pull in at 10 A at 24 VDC.
The 10 A rating at 24 VDC defines the maximum continuous current the main contacts can carry at that voltage — critical for DC motor brakes, solenoid valves, or small DC power supplies. For higher DC voltages, the rating drops: 2 A at 48 VDC, 1 A at 110 VDC, and 0.3 A at 220 VDC. The AC-side ratings include 11 A at 480 V and 11 A at 600 V, making it suitable for 480 V three-phase motor circuits up to about 5 HP. The spring-type terminals accept solid or stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². This covers common control wiring sizes from #20 AWG to #12 AWG, with dual-wire capability for daisy-chaining or looping through the same terminal. Mechanical life is typical at 30 million operations, with a maximum switching frequency of 250 cycles per hour at AC-4 duty. The coil pick-up time at DC is 25 to 45 ms, and arcing time runs 10 to 15 ms.
The Size S00 body measures 45 mm wide, 70 mm high, and 73 mm deep.