What the ratings mean for fit
The 3RT1016-1BE41: The AC-3 motor-switching rating is the one that governs real motor loads: 4.5 kW at 500 V and 5.5 kW at 690 V tell you the maximum three-phase induction motor this contactor can handle in standard starting duty. For resistive or lightly inductive loads, the AC-1 rating is higher — 10 A at 230 V — but the AC-3 figure is the one to size against a pump, fan, or compressor. The 24 VDC coil draws 3.3 W for both closing and holding, so the control transformer or power supply needs to deliver that continuously — not just an inrush spike. The coil holds at 24 V nominal and drops out below 18 V, typical for DC-operated contactors. Screw-type terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid/stranded, or up to 2x (0.75 to 4 mm²) with ferrules. That covers most panel wiring up to 4 mm² without needing ring lugs. IP20 on the front and terminals means it is protected against finger contact but not moisture — suitable for a clean, dry control cabinet, not a washdown environment.
Where it is used
This contactor is built for motor control in industrial panels — starting and stopping three-phase induction motors on conveyors, pumps, fans, and compressors. The S00 frame size keeps the footprint compact at 45 mm wide, so it fits tightly on a DIN rail inside a standard enclosure.
Sourcing and lifecycle
Short-circuit coordination is specified: Type 2 coordination requires a gL/gG fuse rated 20 A; Type 1 coordination allows a 35 A fuse. This matters for selectivity studies in the panel design.