Integrator note — SIRIUS 3RT2046-1AR00 power contactor
Its AC-3 rating of 850 operating cycles per hour means it handles frequent starts and stops on 3-phase induction motors without overheating the arc chamber — a common bottleneck on lower-rated contactors. The 96 A rating at 480 V (AC-3) gives it headroom for motors in the 50–75 hp range, depending on duty cycle. Screw-type terminals on the magnet coil and main contacts accept solid conductors from 2.5 to 16 mm² and stranded from 6 to 70 mm², so it lands on standard panel wiring without adapters.
Mounting and clearance — DIN rail fit
The housing is 70 mm wide, 140 mm high, 152 mm deep.
The contactor is rated for four duty classes. AC-1 (resistive loads) allows 900 ops/h; AC-2 (slip-ring motors) 350 ops/h; AC-3 (squirrel-cage motors) 850 ops/h; AC-4 (plugging/inching) 250 ops/h. The AC-3e rating (enhanced AC-3) also sits at 850 ops/h.
