Siemens SIRIUS 3RT2028-1AK60-ZW96 — S0 Frame Power Contactor
Clearance distances: 10 mm upwards/downwards, 10 mm forwards, 6 mm at the side.
Duty Ratings and Switching Frequency
Maximum switching frequency varies by duty class: 1,000 cycles/hour at AC-1 (resistive load), 750 cycles/hour at AC-2 and AC-3 (motor starting/running), and 250 cycles/hour at AC-4 (plugging/inching). The AC-3e rating matches the AC-3 figure at 750 cycles/hour. Auxiliary contact ratings are voltage-dependent: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, and 0.6 A at 440 V. The coil uses screw-type terminals. Main contacts accept wire sizes from 1 to 10 mm² solid or stranded, with dual-wire capability for 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²).
Dimensions: 85 mm height, 45 mm width, 97 mm depth. The S0 frame size fits standard DIN-rail enclosures. Arcing time is 10 to 10 ms at AC. The auxiliary switch is present and the main contact size range is 16 to 8.