The 3RT2046-3CB04-3MA0: This contactor is rated 96 A at 480 V in AC-3e duty, which is the standard category for squirrel-cage motor switching — that 96 A figure is the motor current it can make and break under full load, so it is the number that governs motor sizing. The AC-3e maximum switching rate of 850 operations per hour tells you the thermal cycling limit for repetitive starts; exceed that and the contactor overheats internally. For resistive loads (AC-1), the maximum is 900 ops/h, and for the harsher plugging/reversing duty of AC-4 it drops to 250 ops/h. The auxiliary contact block is included and rated for switching control circuits: 6 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. These are the make/break capacities for the aux contacts — use them to interlock, signal a PLC input, or drive a pilot light, but stay within the voltage-specific current limits to avoid contact welding. This is the no-load endurance; electrical life under load will be shorter and depends on the switching category and frequency. The coil connection uses spring-type terminals, which is a time-saver during panel wiring — no screwdriver torque check needed, just strip and insert.
Dimensions are 70 mm wide, 140 mm high, 198 mm deep. Wire sizes accepted: solid 2.5 to 16 mm², stranded 6 to 70 mm², and 2x (0.5 to 2.5 mm²) for the auxiliary circuits. The main contact rating is 10 to 2 (likely a typo for 10 to 2 AWG or similar range — verify against the datasheet for your exact wire gauge).