MOV-20D390KTR Circuit Protection

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TVS (Transient Voltage Suppression) varistors, MOVs (Metal Oxide Varistors) and other devices are used in electrical and electronic circuits to protect against fast-rising and overvoltage conditions. The MOV-20D390KTR is a voltage-dependent device specifically designed to protect against transients and surges in the electrical power system.

MOV-20D390KTR applications include branch circuits, lighting, motors, general purpose distribution, electronics equipment and any other areas that may be exposed to over voltages, induced surges and transients. Typical applications for the MOV-20D390KTR include primary protection of motors, HVAC (Heating, Ventilation and Air-Conditioning), industrial equipment, and energy distribution systems.

The MOV-20D390KTR is a bidirectional device with an operating voltage range from 6.0V to 20V. The device features a pulse handling capability of up to 600V and a protection rating of 400V. The MOV works by dissipating excess energy generated by an incoming surge or transient. The MOV-20D390KTR will shunt the incoming impulses to ground, preventing the higher voltage from entering into the protected electrical components or system. This allows the MOV-20D390KTR to absorb the energy and protect your equipment from over voltage and short-circuiting.

MOV-20D390KTR is designed to provide protection in the event of both normal and abnormally high transients/surges. It is ideal for use in harsh electrical environments such as motor starter applications, heavy-duty industrial equipment, industrial motor controls and power supplies.

The MOV-20D390KTR working principle is simple. The device features a metal oxide varistor (MOV) which is a bidirectional voltage-dependent semiconductor breakdown device. The metal oxide element is the key to the MOV-20D390KTR\'s performance. When an overvoltage or surge is detected, the MOV-20D390KTR responds by conducting the unwanted energy away from the system. This shunting action, limited by the varistor\'s rated power handling capability, redirects the excess energy to ground.

The MOV-20D390KTR also has a hysteresis feature, which maintains its protection capability even after the transient is gone. This feature works by "remembering" the peak of the surge the device has seen, and then continues to offer protection at the same level even when the voltage drops lower. This helps ensure that the device is ready to protect your equipment against the next transient or surge.

MOV-20D390KTR is suitable for a wide variety of applications. Its ability to protect against power surges and transients makes it particularly well suited for use in electrical and electronic equipment. Its low operating voltage, high pulse handling capability, and hysteresis make the MOV-20D390KTR a reliable and cost-effective protection device.

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