MOV-14D391K

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MOV-14D391K is a device used for protecting circuits from voltage transients. It belongs to the family of devices called transil functions, and more specifically to the classification of devices called TVS - Varistors, MOVs. This device provides surge and transient peak voltage protection as well as impedance control of the AC line.

The MOV-14D391K device offers high reliability and excellent protection against transients. It is designed to handle transient voltage spikes up to 400V and up to 30A of peak current. The device also features a built in thermal cut-off function to protect itself from damage caused by overheating. The MOV-14D391K is also designed to reduce conducted noise and reduce the effects of over-voltage on sensitive circuits.

The MOV-14D391K is a one-line device that connects directly to the AC line to provide surge and transient protection. It is designed for applications such as lighting, HVAC systems, industrial control systems, and audio-video equipment. Because of its high surge rating and low leakage current, it is an excellent choice for applications in harsh environments such as outdoor installations and damp locations where dust, dirt and moisture may be present.

The working principle of the MOV-14D391K is based on the effect of an overvoltage to the movement of charge carriers. The device detects the incoming surge, and the built-in voltage sensitive varistors start to conduct between the two terminals, thus limiting the current that will flow and consequently the rise in voltage. As the device conducts, voltage is released in the form of harmonic signals and current pulses. These signals are dissipated through the built-in snubber network.

Once the voltage transient has passed, the MOV-14D391K will reset and the circuit will return to its original state. The device is designed for continued use and does not require replacement when activated. It is lightweight and low-profile, making it easy to install. The MOV-14D391K also offers excellent reliability due to its robust construction and built-in over current and thermal protection.

Overall, the MOV-14D391K is an excellent surge protection device with a wide range of applications. Its high surge rating and low leakage current make it a suitable choice for harsh environment applications. It offers good protection against transient surges and reducing conducted noise, making it an ideal choice for sensitive circuit protection. It is relatively easy to install, reliable and offers cost-effective protection.

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