SIRIUS S00 coupling contactor — 24 V DC coil, spring terminals
The Siemens 3RT2017-2JB41-ZX95 is a SIRIUS coupling contactor in the compact S00 frame, built for switching auxiliary and control circuits in industrial panels. Its 24 V DC coil pulls in at the rated value and the main contacts carry 10 A at that same 24 V, making it a direct fit for PLC-driven 24 VDC control loops where you need galvanic isolation between the logic side and the load circuit. Termination is spring-type — no screw torque to check, no re-tightening on a vibration-prone panel door. Accepts 0.5 to 4 mm² solid or stranded, or 2x (0.5 to 4 mm²) with ferrules. That covers standard control wiring up to 12 AWG without needing bootlace ferrules if you prefer solid-core runs. Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. The S00 footprint is 45 mm wide by 70 mm tall by 73 mm deep — a space-efficient package that leaves room alongside terminals or a smaller PLC on the same rail. Mounting position is flexible: ±180° rotation on a vertical surface, and can tilt forward/backward ±22.5° if the panel layout demands it.
Switching duty and thermal limits
Mechanical life is rated at 30 million operations typical, so this contactor holds up in high-cycling applications like conveyor indexing or press control where the cure recipe calls for frequent pick-and-drop. Electrical life depends on load: at AC-3 (motor switching) you get 750 operations per hour maximum; at AC-4 (inching/jogging) it drops to 250 per hour. The arcing time is 10 to 15 ms, and the drop-out delay at DC is 38 to 65 ms — useful to know when sequencing contactors in a safety circuit. Operating temperature range is -25 to +60 °C, storage -55 to +80 °C. That covers most indoor panel environments, including unheated enclosures near a curing press where ambient heat can creep up. The 1.25 A full-scale value on the coil (initial 0.7 A) means the pick-up surge is moderate — check your 24 VDC power supply can handle the inrush if you're ganging several contactors on one PSU.