SIRIUS S00 frame — what the size and coil tell you
The 3RT2017-2BM41: The coil is rated 220 V AC with a pickup threshold of 0.8 x rated value and a dropout threshold of 1.1 x rated value, so it pulls in reliably at 176 V and drops out above 242 V — important for brownout ride-through logic in a control scheme.
Spring-type coil terminals and auxiliary contact ratings
The magnet coil terminates on spring-type terminals, not screw clamps — this means a consistent clamping force on the control wiring without periodic re-torquing, and faster wiring in a panel build. The 2 hp motor rating at 230 V gives a quick cross-check for small pump or fan loads.
Mechanical endurance and switching frequencies
The AC-3e rating also sits at 750 cycles/hour. For a high-cycle conveyor application, stay within the AC-3 ceiling; exceeding it accelerates contact wear beyond the design margin.