Siemens Sirius 3RT1046-1AK60 Power Contactor

The Siemens Sirius 3RT1046-1AK60 is a robust 3-pole power contactor designed for reliable motor control and switching in industrial applications. Part of the SIRIUS modular system, this contactor is rated for AC-3 operation at 80 A and 37 kW at 400 V, making it ideal for starting and controlling three-phase motors in demanding environments such as manufacturing plants, conveyor systems, and pump controls. Key features include screw terminals for secure connections, an integrated coil with 110-120 V AC (50/60 Hz) voltage, and compatibility with auxiliary contacts for enhanced functionality. Advantages over similar products include its compact S3 frame size, high electrical endurance (up to 10 million operations), and modular design allowing easy integration with overload relays and other SIRIUS components. Benefits encompass energy efficiency, reduced downtime due to reliable arc quenching, and compliance with international standards like IEC and UL. Drawbacks may include a higher initial cost compared to basic contactors and the need for proper ventilation in high-heat environments. Based on attached images, the unit appears used with minor wear but intact components, including an attached auxiliary switch block. Applications span automation, HVAC, and heavy machinery. For detailed specs, refer to Siemens datasheets (e.g., official SIRIUS contactor manual PDF available at siemens.com).