The KSTAR STS250D Automatic transfer switch 250kW in Cyprus offers fast, automated switching between your main power supply and backup source. Whether you’re managing a large solar energy system or a commercial building, this cabinet ensures your power stays on when you need it most. With its durable construction and smart control system, it’s ideal for Cyprus’s off-grid, on-grid, and hybrid power environments. Built to handle up to 250kW, the KSTAR STS250D automatic switching cabinet is an essential component in any reliable energy setup. Prevent downtime, avoid manual switching, and gain full control over your power flow with this professional-grade transfer solution.
✓ VAT included · Delivery in Cyprus
Looking for an advanced solution to switch between grid and off-grid power without interruptions? The KSTAR STS250D Automatic transfer switch 250kW in Cyprus offers fast, intelligent switching for large-scale energy systems. Whether you’re running a commercial solar installation, an energy storage system, or a hybrid power solution, this automatic switching cabinet ensures stable and seamless power transition at all times.
At CGP Solar, we offer the KSTAR STS250D automatic switching cabinet as a core component for reliable hybrid installations, including pairing with the KSTAR BluePulse Series KAC50DP-BC197DE Outdoor All-in-One Commercial Energy Storage System. This cabinet is specifically engineered to meet the energy demands and climate conditions of Cyprus.
The KSTAR STS250D Automatic Transfer Switch 250kVa is a sophisticated power management system designed to automatically switch between grid power, backup generators, and renewable energy sources without interrupting your operations. This intelligent switching cabinet operates at 250kVA capacity with 360A rated current, making it perfect for medium to large-scale commercial applications.
One of the KSTAR STS250D Automatic Transfer Switch 250kVa’s standout features is its compatibility with KSTAR’s BluePulse Series, particularly the KAC50DP-BC197DE Outdoor All-in-One Commercial Energy Storage System. This integration creates a comprehensive energy management ecosystem capable of handling up to five KAC50DP units or two KAC125D systems, providing scalable energy storage solutions for growing businesses.
The KSTAR BluePulse C&I ESS Solutions has been recognized with the prestigious EUPD Top Innovations Award 2025, cementing its position as the leading commercial energy storage system in Europe. This award recognizes breakthrough innovations that drive the energy transition forward, making the BluePulse series the smart choice for Cyprus businesses seeking proven, award-winning technology.
This system is tailored to the Cypriot market—where solar power is abundant, but energy reliability and smart usage are critical for commercial and industrial customers.
Cyprus’s growing demand for solar energy and energy independence calls for reliable power management systems. The KSTAR STS250D Automatic transfer switch 250kVa in Cyprus is the perfect solution for ensuring seamless transitions between solar, battery, and grid sources in commercial or large residential environments.
Key Benefits for Cyprus-Based Installations:
✅ Energy Cost Optimization
With Cyprus having some of the highest electricity rates in Europe, the KSTAR STS250D Automatic transfer switch 250kVa’s ability to intelligently manage multiple power sources becomes crucial for cost control. By automatically switching to stored solar energy during peak pricing periods, businesses can achieve substantial savings on their energy bills.
✅ High Compatibility with Energy Storage
Easily integrates with KSTAR KAC50DP-BC197DE systems and hybrid inverters used in Cyprus’s commercial-scale solar plants.
✅ Climate Resilience
Designed to operate in temperatures from -25°C to +45°C with 0-100% humidity tolerance, the KSTAR STS250D Automatic transfer switch 250kVa thrives in Cyprus’s hot, humid summers and mild winters. The IP54 protection rating ensures reliable operation despite coastal salt air and occasional dust storms from the Middle East.
✅ Tourism Industry Benefits
Cyprus’s vital tourism sector, operating hotels, resorts, and entertainment venues, cannot afford power interruptions. The KSTAR STS250D Automatic transfer switch 250kVa’s seamless switching ensures guest comfort while maintaining operational efficiency during power fluctuations.
✅ Industrial Applications
Manufacturing and processing facilities in Cyprus’s free trade zones require consistent power quality. The KSTAR STS250D Automatic transfer switch 250kVa’s isolation transformer and power conditioning capabilities protect sensitive industrial equipment while maintaining production schedules.
✅ Scalability
As Cyprus businesses grow, the KSTAR STS250D Automatic transfer switch 250kVa grows with them. Its modular design allows easy expansion, accommodating additional renewable energy sources or backup systems without major infrastructure changes.
✅ Local Support
Through CGP Solar’s partnership with KSTAR, Cyprus customers receive comprehensive local support, including installation, commissioning, and ongoing maintenance services.
More information about KSTAR BluePulse KAC50DP-BC197DE Commercial ESS and KSTAR STS250D Automatic Switch Cabinet you can find on official KSTAR website.
Outdoor Battery Cabinet Parameters
| Feature | Specification |
|---|---|
|
Model Name |
KSTAR STS250D Automatic Switching Cabinet On-Grid/Off-Grid |
|
Technical Parameters |
|
|
Rated Voltage |
400V |
|
Rated Current |
360A |
|
Rated Frequency |
50/60Hz |
|
Rated Power |
250kVA
|
|
Max. Grid Input Power |
375kVA |
|
Switch Time Between On/Off-grid |
≤ 20 ms |
|
PCS Input |
125 A*5 |
|
Max. Grid Input |
630A |
|
DG Input (Optional) |
630A |
|
Load Breaker |
630A |
|
Grid / DG Bypass Breaker |
630 A*2 |
|
Isolation Transformer |
250kVA |
|
Lightning Protection |
Type II |
|
Protection Degree |
IP54 |
|
Relative Humidity |
0 ~ 100% |
|
Operating Temperature |
-25°C ~+ 45°C |
|
Cooling Type |
Air Cooling |
|
Dimensions (W x H x D) |
1300 x 2380 x 930 mm |
|
Weight |
1550 kg |
|
Operating Altitude |
≤ 3000 m |
|
Communication |
RS-485 / 4G / Ethernet |
|
Installation |
Tower – type |
* The capacity of the PV inverter for AC coupling can’t be larger than the capacity of PCS.
** One STS250D can be connected to a maximum of five KAC50DP or two KAC125D.
Any manufacturing plant or industrial operation in Cyprus where continuous power is critical to avoid costly downtime and protect production lines. The 250kVA capacity is well-suited for significant industrial loads.
Large office buildings, shopping centers, hotels, and resorts that want to ensure uninterrupted power for their operations, comfort, and security systems.
For these highly sensitive operations, even a momentary power disruption can lead to significant data loss or system damage. The KSTAR STS250D Automatic transfer switch 250kVa’s rapid switching time is invaluable here.
Farms or remote agricultural businesses in Cyprus that rely on pumps, processing equipment, or climate control, where off-grid reliability or seamless grid interaction is paramount.
Companies designing and installing large-scale solar photovoltaic (PV) systems in Cyprus, particularly those integrating battery energy storage systems (BESS) and requiring sophisticated grid interaction or standalone capabilities.
Facilities like hospitals, communication hubs, or emergency services where an uninterrupted power supply is a matter of public safety and essential service delivery.
Those integrating solar, wind, generators, and grid power into a single, cohesive system requiring intelligent power flow management.
The Cyprus government recognizes the critical importance of energy storage for the island’s energy transition. The government of Cyprus has confirmed financial support will be made available for renewable energy projects paired with energy storage. This support includes:
For detailed information about available incentives, visit the Cyprus Ministry of Energy, Commerce and Industry or contact the Energy Service.
The KSTAR STS250D Automatic transfer switch 250kVa in Cyprus is more than a switch—it’s a critical infrastructure component for any solar-powered, hybrid, or off-grid system. Its high speed, reliability, and smart integration make it an essential product for ensuring energy stability in Cyprus’s dynamic power environment.
If you’re investing in solar storage or hybrid systems—especially the KSTAR KAC50DP BluePulse Series—this is the switch you can trust.
Contact CGP Solar today for a free quote!
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