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China TOVS Multifunctional Electrical Safety Device - Suppliers & Factory for Lightning and Interference Protection
Functional features
Over 90% attenuation of overvoltage caused by lightning strikes, operation, resonance, etc.
Simultaneously solving various problems such as normal interference and transient interference.
Not conflict with SPD, and the original system can remain unchanged.
TOVS is generally installed in the output of UPS to clear its interferences.
The maximum amplitude is limited to below 370V, which is the peak value of 260V.
The interference attenuation efficiency is greater than 90%.
TOVS can fill the huge protection blind spot of SPD.
TOVS can also be installed on the input end of UPS for protection.
TOVS has multiple overvoltage protection functions to ensure the safety of electrical equipment.
When there is a minor malfunction in the TOVS device, the device has a fault alarm function, and the [Alarm] indicator light is on for maintenance personnel to check. The TOVS device has an alarm and some functions are missing. The main functions are still effective and do not affect the safe and reliable operation of the load.
Technical indicators
| Suppression frequency range | 75Hz~100MHz |
| Maximum suppression current | 120kA (8/20us) |
| Maximum suppression voltage | 25kV(8/20us) |
| Continuous operating current | ≤20A |
| Loss | <60W |
| Interference suppression rate | 50%~96% |
| Response time | <25ns |
| Resistance measurement range | 0-200Ω |
| Measurement accuracy | ±2.5% |
Detail pictures
Frequently Asked Questions
Q: How effectively does TOVS attenuate overvoltage and interference?
TOVS provides over 90% attenuation of overvoltage caused by lightning strikes, operation, and resonance. It has an interference suppression rate of 50% to 96% and limits the maximum amplitude to below 370V (peak value of 260V).
Q: Can TOVS be used alongside existing Surge Protective Devices (SPD)?
Yes, TOVS does not conflict with SPD. Your original system can remain unchanged. In fact, TOVS fills the large protection blind spots that standard SPDs typically leave unprotected.
Q: Where should the TOVS device be installed in a UPS system?
TOVS is generally installed at the output end of the UPS to clear its internal interferences. However, it can also be installed at the input end of the UPS for front-end protection.
Q: What happens if the TOVS device experiences a minor malfunction?
If a minor malfunction occurs, the fault alarm function is triggered, turning on the [Alarm] indicator light for maintenance checkups. Although some functions may be missing during an alarm, the main protection functions remain effective and will not affect the safe and reliable operation of the load.
Q: What are the key response and suppression metrics of TOVS?
TOVS has an ultra-fast response time of less than 25ns (<25ns), a suppression frequency range of 75Hz to 100MHz, a maximum suppression current of 120kA (8/20us), and a maximum suppression voltage of 25kV (8/20us).



