Siemens SIRIUS 3RT2036-1SP30 power contactor, size S2
Mounting is via screw fixing or snap-on onto 35 mm DIN rail per DIN EN 60715, with the contactor body measuring 55 mm wide, 114 mm tall, and 130 mm deep — fitting standard panel layouts with the S2 footprint.
Coil and switching performance
Inrush current peaks at 43 A, so the control transformer and fuse must handle that surge without nuisance tripping. Switching frequency depends on duty: AC-1 (resistive) allows up to 1 000 operations per hour, AC-3 (motor starting) up to 800 per hour, AC-4 (plugging/inching) up to 250 per hour. Arcing time runs 10–20 ms; make/break times are 30–55 ms for both AC and DC circuits. The auxiliary contact ratings: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V — these are the interrupting limits for the integrated auxiliary switch.