Overview
The Siemens 3RT2046-1AK64-3MA0 is a high-performance SIRIUS 3RT2 series power contactor designed for reliable switching of 3-phase AC motors and other loads up to 95A. This robust, 3-pole contactor is engineered for use in demanding industrial environments, featuring a compact Size S3 frame and versatile screw terminals for secure wiring. Its high breaking capacity and long mechanical life make it an essential component for motor control applications, including Direct-On-Line (DOL) starters and various switching tasks.
Benefit
- Reliable Motor Control: Rated at 95A and 45 kW (at 400V) for safe and efficient switching of powerful industrial motors.
- High Availability: SIRIUS 3RT2 series is known for its extended mechanical life (up to 10 million operating cycles) and high operational reliability.
- Integrated Auxiliary Contacts: Features a pre-mounted, captive 2 NO + 2 NC auxiliary switch block, simplifying wiring and reducing installation time for control circuits.
- Global Compatibility: Designed to international standards (IEC, UL, CSA), ensuring suitability for worldwide applications.
- Easy Integration: Compact Size S3 design and screw terminals allow for straightforward mounting on DIN rails or surfaces in control cabinets.
Function
The 3RT2046-1AK64-3MA0 contactor uses an electromagnetic coil (110V AC / 120V AC) to control the main power circuit. When the coil is energized, the three main contacts close, connecting the power to the load (e.g., a motor). The integrated 2 NO and 2 NC auxiliary contacts provide essential feedback and interlocking functionality for the control system.













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