The Siemens 3RK1304-5KS40-4AA0 is a robust direct-on-line (DOL) starter, designed to offer reliable and efficient control for motor applications. This component is part of the highly regarded SIMATIC range and is engineered to facilitate on-site operation with ease. It is suitable for three-phase motors with an operating voltage range of 200 to 400 V and can handle motors with a power rating of up to 0.9 kW at 400 V in AC-3 usage.
Crafted with an electromechanical switching design, this DOL starter ensures a mechanical service life of approximately 30 million switching cycles, highlighting its durability and longevity. The unit is equipped with electronic overload protection, safeguarding motors against potential damage due to current overload, with an adjustable pick-up value current ranging from 0.15 to 2 A.
The 3RK1304-5KS40-4AA0 is designed with safety in mind, featuring finger-safe protection against electrical shock and a trip class of CLASS 10. It boasts a high short-circuit current breaking capacity of 100,000 A at 400 V, ensuring reliable operation even in demanding industrial environments.
This DOL starter is also equipped with a solid-state motor protection system, which contributes to its reliable performance. It has an insulation voltage rated at 400 V and can withstand surge voltages up to 6 kV, with a degree of pollution of 3. The device is rated for an IP65 protection class, making it suitable for use in areas where dust and water jets are a concern.
For integration into automated systems, the 3RK1304-5KS40-4AA0 supports both PROFIBUS DP and PROFINET protocols, allowing for seamless communication within a networked industrial environment.
The compact dimensions of this DOL starter, with a height of 230 mm, a width of 110 mm, and a depth of 150 mm, make it suitable for installations where space is at a premium. It can be mounted either vertically or horizontally, providing flexibility in installation.
Overall, the Siemens 3RK1304-5KS40-4AA0 is a reliable and efficient solution for motor control applications, offering durability, safety, and ease of use, making it a valuable addition to any industrial automation system.