The Siemens 3RT1044-1AK60 SIRIUS power contactor is a high-performance industrial switching device engineered for reliable control of three-phase motors and heavy electrical loads in industrial automation systems. Built in Siemens’ S3 frame size, the contactor features a robust 3-pole design with screw terminal connections and is rated for AC-3 motor duty applications up to 30 kW at 400V. It operates using a 110V AC 50Hz / 120V AC 60Hz control coil and provides dependable switching performance with long electrical and mechanical service life. Designed for use in motor starters, compressors, pumps, conveyors, HVAC systems, and industrial machinery, the contactor supports DIN rail or panel mounting and compatibility with auxiliary contacts and overload relays for flexible automation integration.
Product Specifications
| Specification | Details |
| Brand | Siemens |
| Model | 3RT1044-1AK60 |
| Product Series | SIRIUS 3RT10 |
| Product Type | Power Contactor |
| Contactor Type | 3 Pole Contactor |
| Rated Operational Current (AC-3) | 65 A |
| Rated Operational Current (AC-1) | 100 A |
| Rated Motor Power | 30 kW at 400V |
| Coil Voltage | 110V AC 50Hz / 120V AC 60Hz |
| Number of Poles | 3 Pole |
| Main Contacts | 3 NO |
| Terminal Type | Screw Terminal |
| Mounting Type | DIN Rail / Panel Mount |
| Frame Size | S3 |
| Insulation Voltage | 1000 V |
| Frequency | 50/60 Hz |
| Protection Rating | IP00 |
| Mechanical Life | Approx. 10 Million Operations |
| Application | Motor Control & Industrial Automation |
| Suitable For | Pumps, Compressors, Conveyors, HVAC |
| Country of Brand Origin | Germany |
