The 3RT7016-1AH01 is a Siemens SIRIUS Size S00 contactor with three normally-open main contacts, rated for AC-3 duty up to 690 V. The IP20 rating on the front and terminals means it's safe for finger contact inside an enclosed panel — no extra shrouding needed on the terminals.
Width is 45 mm, depth 72 mm, height 57.5 mm — that's a compact footprint for a three-pole contactor. Mounting position is flexible: ±180° rotation on a vertical surface, and you can tilt forward or backward by ±22.5°.
Ratings that matter for the job
Three main poles, all normally open. The AC-3 operating voltage maxes out at 690 V — that covers 400 V and 480 V systems with headroom. The control supply is AC; coil holding power at DC is 0.27 W, closing power 0.8 W.
