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| Categories | DC DC Converter | 
|---|---|
| Brand Name: | STS | 
| Model Number: | STS40S STS40D | 
| MOQ: | 1pcs | 
| Price: | USD 1 | 
| Payment Terms: | T/T | 
| Supply Ability: | 3000 pieces per month | 
| Delivery Time: | 1-2 weeks | 
| Packaging Details: | wooden cartons | 
| model: | STS40S STS40D | 
| Rated voltage (VAC): | 220 | 
| Input voltage range (VAC): | 190~260 | 
| rated frequency (Hz): | 50 | 
| power factor: | 1 | 
| insulation strength: | 2KVAC,1min | 
| Noise (1m): | ≤55dB | 
| operating ambient temperature: | -25~50℃ | 
| humidity: | 0~90%, with no condensation | 
| levels of protection: | IP20 | 
| Company Info. | 
| Beijing Ding Ding Future Technology Co.Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 

STS-100 static transfer switch(STS)
The STS AC dual-power switching device, meticulously designed based on the principle of high-speed static contactless switching, boasts exceptional performance. Its distinctive operation mode allows the two AC inputs to be in a mutually exclusive state, with one input prioritized to power the load. In the event of power abnormalities, the device can leverage its advanced technical architecture to switch to the other power source with extremely fast response speed. Thanks to its contactless switching and high reliability, it provides solid support for the continuous and stable power supply to the load.
Technical Parameter
| Items | Technical Parameters | |
| Switchtim e | Priority switching | ≤4m s | 
| AC INPUT | Rated voltage (VAC) | 220 | 
| Input voltage range (VAC) | 190~260 | |
| rated frequency (Hz) | 50 | |
| power factor | 1 | |
| Autoconvertthreshold voltage | ≤190Vac ± 5Vacor≥260Vac ± 5Vac | |
| Auto convert threshold frequency | ≤45Hz±0.2Hzor≥65Hz±0.2Hz | |
| Over-limit protection shutdown threshold voltage | 160Vac or 265Vac, return ± 5V | |
| Over-limit protection shutdown threshold frequency | 45Hz or 65Hz, with differential ± 0.2Hz | |
| overload capacity | Load current is 110%, operating continuouslyLoad current> 110%, immediately shut-off; | |
| Environme nt | insulation strength | 2KVAC, 1min | 
| Noise (1m) | ≤55dB | |
| operating ambient temperature | -25 ~50℃ | |
| Transport and storage temperature | - 40~70℃ | |
| humidity | 0~90%, with no condensation | |
| levels of protection | IP20 | |
| height (m) | ≤30002000~3000mOutput reduction of 2% per 100m increase | |
| defencive function | Input undervoltage, overvoltage protection, output overload protection, over temperature protection, short circuit protection | |









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Our services commence with a meticulous site survey to gain
in-depth insights. Based on each customer's unique requirements, we
craft highly professional and customized plans. Alongside, we
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lifecycle and reliable maintenance services to ensure seamless
operations. Our team comprises seasoned experts, and we've built a
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