20 years of industry experience
Are mainly used in the telecommunication service center,
Railway Control Center ,internet/data exchange center,
industrial automation, automated office, DC screen/cabinet, etc.
To meet your various needs.
Product details
19-Inch Industrial Power Distribution Box Customized Rack-Mounted 25A 220VAC STS 1U Single-Phase Switch for Telecom
The static transfer switch is a dual-input transfer switch, usually one channel is connected, the other channel is disconnected, and the load is powered by one AC input. When one power supply fails, the STS automatically disconnects the original one, and turns on the other one that was disconnected, converting the load to the other power supply without interruption.
This model is designed for a 19-inch cabinet; it can also be installed on the front panel or in the center of the cabinet, depending on the location and location of the fixed edge.
◆ Adopt full digital control, strong anti-interference ability, fast operation speed; ◆ Switch time ≤6ms, high reliability; ◆ Strong overload capacity, can withstand the full load boot; ◆ With the input of under-pressure, over-current and other protection functions; ◆ The front panel is equipped with a display screen and an indicator light to intuitively understand the STS status information; ◆ Provide fire line, zero line can be switched simultaneously STS version, appearance structure, performance is exactly the same.







Profil de l'entreprise
Item | Technical Parameters |
Switch Time | |
Priority Switching | ≤4m s |
AC Input | |
Rated Voltage (VAC) | 220 |
Input Voltage Range (VAC) | 190~260 |
Rated Frequency (Hz) | 50 |
Power Factor | 1 |
Auto Convert Threshold Voltage | ≤ 190Vac ± 5Vac or ≥260Vac ± 5Vac |
Auto Convert Threshold Frequency | ≤45Hz±0.2Hz or ≥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 continuously; Load current> 110%, immediately shut-off; |
Insulation Strength | 2KVAC,1min |
Noise (1m) | ≤55dB |
Operating Ambient Temperature | -25~50℃ |
Transport and Storage Temperature | -40~70℃ |
Humidity | 0~90%, with no condensation |
Protection Rating | IP20 |
Altitude | ≤3000, 2000~3000m Output reduction of 2% per 100m increase |
Protection | Input under voltage, over voltage protection, output overload protection, over temperature protection, short circuit protection |