What this SIRIUS contactor is rated for
The 3RT2026-1AP60: That AC-3 rating means it's built for starting and stopping squirrel-cage motors — the contacts handle the inrush without welding, and the 750 cycles-per-hour maximum at AC-3 keeps the thermal rise within the coil's duty cycle. The coil pulls 0.25 A at 50 Hz and 0.28 A at 60 Hz, so the control transformer sizing is straightforward. That covers most PLC feedback and interlocking needs without adding a side-mount block.
Panel fit and wiring constraints
That depth includes the coil terminals; when you're laying out a row of contactors, the 97 mm projection from the rail is the dimension to watch for enclosure depth. Torque range for the main contacts is 16 to 8 N·m — that's a wide band, so set the driver to the upper end for 10 mm² and back off for the smaller gauges.