STS200/400/600 Series Static Transfer Switch Modules
At a glance
Fast static transfer switch with <20 ms seamless grid/off-grid transfer, source/load sensing, compliant with multiple national transfer standards and LocalEMS; RS485/CAN/4G interfaces.
Key Features
- Switching time <20ms
- Seamless on-grid/off-grid switching
- Grid-side/load-side detection
- Supports switching standards of multiple countries
- Integrated LocalEMS
- Multiple communication interfaces (RS485/CAN/4G)
Product Description
The STS200/400/600 series static transfer switch modules support seamless on-grid/off-grid transfer and feature grid-side/load-side voltage, current and power measurement. An LocalEMS is integrated inside, and multiple communication interfaces such as RS485×3, Modbus TCP, CAN and 4G are supported. They are suitable for PV-storage microgrids, backup power supplies, emergency power supplies, diesel-storage and other scenarios.Specifications
| Model | STS200 / STS400 / STS600 |
|---|---|
| Rated Power | 200KW / 400KW / 600KW |
| AC Voltage (Range) | 400V/230V (-20%~+15%) |
| Frequency Range | 50Hz/60Hz (±5Hz) |
| Maximum AC Power | 220KVA / 400KVA / 600KVA |
| Maximum AC Current | 330A / 660A / 1000A |
| Switching Time | <20ms |
| Harmonic Detection | YES |
| Communication Ports | RS485×3 / modbus TCP / CAN / 4G |
| DIDO | DI: 2 channels / DO: 2 channels |
| Protection Rating | IP20 (core control section IP5X) |
| Dimensions (W*L*H) | STS200: 440*420*360mm; STS400/STS600: 650*420*360mm |
| Weight | STS200: 35kg; STS400/STS600: 63kg |
| Operating Temperature | -30~60℃ |
| Humidity | 0~100% |
| Cooling Method | Intelligent forced air cooling |
| Altitude | 4000m (derated above 2000m) |
| Protection Functions | Over-temperature protection, over-current protection, over-voltage protection, ground short-circuit protection |
| Core Features | Integrated LocalEMS, seamless switching, grid-side/load-side voltage and current detection, support for multi-country grid-connected/off-grid switching standards |
| Application Scenarios | Commercial and industrial energy storage + emergency backup power, PV-storage-diesel small microgrid, mobile energy storage, PV-storage charging station |
Product FAQ
What is an STS for?
Rapid switching between grid and microgrid to keep critical loads continuous.
Transfer time?
Under 20ms for grid-tie transfer.
Which standards?
Compliant with multiple national transfer standards.
Not sure this is the right specification?
Send us your drawing, data sheet or sample and our engineers will confirm the match within 48 hours.
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Application Cases & Scenarios
