The Siemens SIRIUS 3RT1016-1AP02-ZX95 is a size S00 power contactor, meaning it's the smallest frame in the SIRIUS line — 45 mm wide, 57.5 mm tall, 72 mm deep. That footprint matters when you're packing contactors into a crowded DIN rail enclosure; S00 gives you the switching capacity without eating up rail space. Front face carries IP20 protection; terminals are also IP20, typical for inside a panel where no one's poking screwdrivers into live parts.
This contactor is rated for motor switching: 4.5 kW at 500 V and 5.5 kW at 690 V. At 400 V AC-2 duty it handles 4 kW; AC-4 at 400 V is rated 8.5 A, which covers frequent jogging or reversing applications. Auxiliary contact ratings cover the common control voltages you'll see on the floor: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. That 24 V 10 A rating is the one you care about if you're running a 24 VDC control loop — it's not a signal-level contact, it'll handle small solenoid valves or pilot lights directly.
Wiring and terminal details
Main circuit terminals are screw-type, accepting solid or stranded conductors: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or max 2x (0.75...4 mm²). AWG equivalents are 2x (20...16), 2x (18...14), and 1x 12. That's enough for the motor leads on a 5.5 kW load at 690 V — typically 2.5 mm² or 14 AWG would be fine, and the terminals handle that without pigtails. That's the selectivity decision you need to make at the panel design stage.
No surplus or broker channel needed for this one; it's a standard catalog item in the SIRIUS line.