SIRIUS 3RT1046-1AV00 — Size S3 Power Contactor for Motor Loads
Its headline AC-3 rating at 500 V is 55 kW, which means it can handle a 55 kW three-phase induction motor under standard starting conditions (make and break under load). For heavier duty cycling like reversing or inching (AC-4), it is rated 80 A at 400 V.
Auxiliary Contact Ratings and Coil Data
The integrated auxiliary contacts are rated for switching control circuits: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. These are the values to use when sizing the control transformer or verifying the PLC output can drive the contactor coil. The coil itself is rated for 400 V at 50 Hz, with an operating range of 0.8 to 1.1 times the rated voltage. Maximum switching frequency varies by duty: 900 cycles/hour for resistive loads (AC-1), 850 for AC-3 motor starting, 350 for AC-2, and 250 for AC-4.