An auxiliary switch is built in — no separate add-on to track. The contactor mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° tilt forward/backward. That means it fits a panel layout without fighting the orientation.
Panel fit and clearances
At 45 mm wide, 58 mm tall, and 73 mm deep, this contactor sits in a standard S00 footprint. That keeps the arc chamber vented and the terminals accessible for a screwdriver. Wire range accepts 0.5 to 4 mm² solid or stranded, and up to 2x 4 mm² or 2x (0.5 to 1.5 mm²) for paralleled feeds — no holes in the box for a terminal adapter.
Rated switching frequency varies by duty: 1 000 operations per hour at AC-1 (resistive), 750/h at AC-2 and AC-3 (motor start/run), and 250/h at AC-4 (plugging/inching). The AC-3e rating also sits at 750/h. The auxiliary contact is rated 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. That covers most control-voltage rails in a panel.