Siemens 3RT2017-2XJ42-0LA2 — SIRIUS Contactor, Size S00, 24 VDC Coil
The Siemens 3RT2017-2XJ42-0LA2 is a SIRIUS-brand contactor in Size S00, designed for switching loads in industrial control panels. It carries a 24 VDC coil with spring-type terminals, rated to pull in at 10 A at 24 VDC. The contactor mounts via screw or snap-on onto a 35 mm DIN rail per EN 50022, fitting into a 45 mm wide footprint.
Ratings and What They Mean for Fit
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.
Mounting and Integration
Mounts via screw or snap-on onto a 35 mm standard mounting rail per DIN EN 50022. The Size S00 body measures 45 mm wide, 70 mm high, and 73 mm deep. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. Mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward.