In medium voltage power distribution systems, choosing the right switchgear is an important decision. Besides voltage and current ratings, factors such as insulation technology, maintenance requirements, and environmental impact are becoming increasingly important. Listrik Kita is an official Schneider Electric distributor that provides original and warranty-backed products for various electrical needs, including medium voltage switchgear.
One comparison that is worth understanding is SM6 and SM AirSeT from Schneider Electric. Both are designed for medium voltage power distribution, but they use different technology approaches. So, what are the main differences between SM6 and SM AirSeT? Let’s take a closer look.
1. Insulation Medium of SM6 and SM AirSeT
One of the main differences between SM6 and SM AirSeT is the insulation medium. SM6 is a medium voltage switchgear solution that uses SF₆ or Sulfur Hexafluoride as an insulation medium in certain parts of the equipment.
SF₆ is known for its strong electrical insulation properties and has been widely used in high voltage and medium voltage electrical equipment. This technology supports the insulation requirements of switchgear systems.
Meanwhile, SM AirSeT uses air as its insulation medium, meaning it does not rely on SF₆ for insulation. This is one of the key characteristics of Schneider Electric’s SF₆-free switchgear technology.
The difference in insulation technology is important for companies and projects that are considering switchgear without SF₆. However, the final choice should still be based on system requirements, technical specifications, and installation conditions.
2. Environmental Impact and Recycling
Environmental impact has become an important consideration in modern switchgear technology. SF₆ has a very high global warming potential, so its use and handling need to follow proper procedures.
For switchgear that uses SF₆, gas management is an important part of maintenance and end-of-life handling. Proper procedures are needed to reduce the risk of releasing the gas into the environment.
Unlike SM6, SM AirSeT is designed as an SF₆-free switchgear solution and uses air as the insulation medium. This can make it a suitable option for projects with sustainability targets or those looking to reduce their dependence on greenhouse gases in electrical equipment.
End-of-life considerations are also important. When choosing switchgear, users should look beyond daily operation and consider material management, maintenance requirements, and recycling at the end of the equipment’s service life.
3. Digital Features and Maintenance
Digital technology is also changing the way switchgear is monitored and maintained. Maintenance today is not always based only on a fixed schedule. Equipment condition information can also support a more informed maintenance strategy.
With SM6, monitoring and protection functions can be configured according to the system requirements and supporting devices. SM AirSeT, meanwhile, takes a more modern approach to digitalization and equipment condition monitoring.
Digital technologies can provide information that helps users monitor system conditions. This information can support early identification of potential issues, better inspection planning, and more effective maintenance decisions.
This approach can also help reduce the risk of unexpected downtime. However, neither switchgear should be considered maintenance-free. Both SM6 and SM AirSeT still require inspection and maintenance based on the equipment configuration, operating conditions, and Schneider Electric recommendations.
4. Compatibility and Dimensions
Compatibility with an existing installation is another important factor when comparing SM6 and SM AirSeT. Installing or replacing switchgear requires more than simply comparing product names.
Several factors should be checked, including voltage rating, rated current, short-circuit level, panel configuration, protection system, cable connections, and installation requirements. These factors become especially important when considering SM AirSeT for a project that previously used SM6.
Dimensions also need to be considered. Switchgear dimensions can vary depending on the configuration, panel function, rating, and arrangement of functional units. Therefore, panel space, cable positions, maintenance access, and future expansion should be considered during the planning stage.
In other words, SM AirSeT should not automatically be treated as a direct or drop-in replacement for every SM6 configuration. A technical assessment is still required to ensure the selected equipment matches the existing installation.
Aspect | SM6 | SM AirSeT |
| Insulation Medium | SF₆ | Air |
| Technology | Conventional medium voltage switchgear | SF₆-free medium voltage switchgear |
| Environmental Impact | Requires proper SF₆ gas management | Supports the reduction of SF₆ use |
| Digitalization | Can be integrated with monitoring systems | Designed with digitalization and condition monitoring in mind |
| Maintenance | Based on configuration and manufacturer recommendations | Supports condition-based maintenance approaches |
| Compatibility | Suitable for existing SM6 installations | Requires technical assessment before retrofit or replacement |
| Dimensions | Varies depending on configuration | Varies depending on configuration |
SM6 or SM AirSeT, Which One Should You Choose?
SM6 and SM AirSeT can both be used for medium voltage power distribution, but they have different technology characteristics. SM6 can be a suitable option for installations that already use the SM6 ecosystem and need continuity with the existing system.
On the other hand, SM AirSeT can be considered for projects that place greater importance on SF₆-free technology, sustainability, digitalization, and equipment condition monitoring.
Ultimately, the right switchgear should be selected based on technical specifications, project requirements, existing installation conditions, and long-term goals. If you are looking for Schneider Electric SM6 or SM AirSeT, Listrik Kita provides original Schneider Electric products with warranty support for medium voltage power distribution needs. Explore SM6 and SM AirSeT Schneider Electric at Listrik Kita and find the right solution for your project.
