The Siemens 3RT7036-1AG00 is a SIRIUS S2 contactor — three main poles, all normally open, rated for main current circuits up to 690 V insulation voltage. Rated operational current at AC-3 hits a maximum of 690 V, and at DC-13 with 220 V it'll switch 0.3 A — enough for a medium-sized contactor coil or a solenoid valve on a lube line. The coil holds at 0.36 W DC, so the control transformer won't sweat the steady-state draw.
Dimensions are 55 mm wide, 112 mm tall, 115 mm deep — the S2 frame size. That depth matters when you're laying out gland plates or a shallow enclosure; 115 mm means you've got room behind the panel door for wiring bends.
Switching frequency maxes out at 800 operations per hour under AC-3, and 250 per hour under AC-4. If you're jogging a conveyor or cycling a pump on a short interval, that AC-4 number is the one that governs — 250 cycles per hour is about one every 14 seconds, which is fine for most process starts but not for a high-speed pick-and-place.
Wire range accepts 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²) with ferrules. That's a standard panel wire size, so no special tooling needed.