The Siemens 3RT2037-1AK60-ZX95 is a SIRIUS power contactor in size S2, rated for motor switching up to 65 A at 480 V and 10 hp at 230 V.
Panel integration is straightforward: the 55 mm wide, 114 mm high, 130 mm deep footprint fits standard DIN-rail enclosures.
Switching frequency varies by duty: AC-1 resistive loads up to 800 cycles/hour, AC-3 motor loads up to 700 cycles/hour, and AC-4 plugging/reversing up to 200 cycles/hour. The auxiliary switch is included, with contact ratings from 10 A at 24 V down to 0.3 A at 220 V.
