Siemens AG Launches Sustainable SIRIUS 3RQ4 Relay Series for Eco-Friendly Industrial Solutions
- Siemens Smart Infrastructure launched the SIRIUS 3RQ4 coupling relay series, emphasizing sustainable industrial solutions with eco-friendly materials.
- The SIRIUS 3RQ4 features innovative Akulon® plastic made from 70% bio-based material, enhancing sustainability in Siemens' product line.
- Siemens aims to lead in eco-friendly technology by expanding its portfolio of sustainable solutions in response to market demands.

Siemens Smart Infrastructure Unveils Sustainable SIRIUS 3RQ4 Coupling Relay Series
Siemens Smart Infrastructure has launched the SIRIUS 3RQ4 coupling relay series, marking a significant advancement in the company's commitment to sustainable industrial solutions. This new product line features three versatile variants designed for a range of industrial applications. A standout aspect of the SIRIUS 3RQ4 is its innovative housing, crafted from Akulon® K225-KS B-MB plastic, which is composed of 70% bio-based material derived from biomass waste, specifically used cooking oil (UCO). This strategic choice not only enhances the product's environmental footprint but also underscores Siemens’ leadership in integrating sustainable materials into its offerings.
The collaboration with Envalior, a prominent player in high-quality sustainable solutions, is pivotal to this initiative. The Akulon® plastic used in the SIRIUS 3RQ4 exhibits excellent heat and chemical resistance while being both bio-based and halogen-free. Importantly, the UCO utilized in this plastic is unsuitable for human or animal consumption and does not compete with food production, further promoting sustainability. Andreas Matthé, CEO of Electrical Products at Siemens Smart Infrastructure, notes that this partnership signifies a critical step in the integration of sustainable materials in electrical products, reinforcing Siemens' mission to lead in eco-friendly technology.
The introduction of the SIRIUS 3RQ4 coupling relay not only reflects Siemens’ commitment to sustainability but also highlights the growing demand for environmentally responsible solutions in the industrial sector. As industries increasingly prioritize sustainable manufacturing practices, Siemens aims to address these evolving needs by leveraging innovative materials and strategic partnerships. The SIRIUS 3RQ4 represents a forward-thinking approach to industrial automation, combining operational efficiency with a strong emphasis on environmental responsibility, thereby contributing to a more sustainable future for industrial operations.
In addition to the product launch, Siemens continues to focus on expanding its portfolio of eco-friendly technologies that cater to an increasingly conscientious market. By leveraging sustainable practices, the company positions itself as a leader in the drive toward greener industrial solutions, aligning with global trends that prioritize sustainability.
This latest development not only enhances Siemens' product offerings but also sets a precedent for the use of recycled materials in engineering plastics, showcasing the potential for innovation in reducing waste within the industry. As the market for sustainable solutions grows, Siemens' proactive measures and innovative products like the SIRIUS 3RQ4 are likely to play a crucial role in shaping the future of industrial automation.