Integrator note — SIRIUS S3 contactor 3RT2046-1AQ20
It occupies a 70 mm width, 140 mm height, and 152 mm depth on the rail, with clearance requirements of 10 mm upwards, 10 mm downwards, 20 mm forwards, and 10 mm at the side. Wire range accepts 2.5 to 16 mm² solid conductors and 6 to 70 mm² stranded conductors on the main circuit.
Duty-cycle switching frequencies and auxiliary contact ratings
Maximum switching frequency varies by duty: 900 operations/hour at AC-1, 350 at AC-2, 850 at AC-3 (and AC-3e), and 250 at AC-4. Auxiliary switch contacts are rated at 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 0.8 A at 440 V. Arcing time is 10 to 20 ms, with a make time of 10 to 21 ms at AC.
Mechanical endurance of the contactor is typically 10,000,000 operations.