WebVaristor definition, a resistor whose resistance automatically varies in proportion to the voltage of the current through it. See more. Webone or more metal oxide varistors, or MOVs. When the voltage spikes or surges, the MOVs absorb the excess current. Meanwhile, the acceptable current continues to flow through the line and power the connected electronic equipment safely. In essence, the MOVs serve as a pressure-sensitive valve that opens only when excess pressure must be released.

Varistors: Ideal Solution to Surge Protection - Vishay …

WebStep 1: To find the voltage rating of the MOV, allow for 20% headroom to account for voltage swell and power-supply tolerances: 24 V dc × 1.2 = 28.8 V dc. Given that no varistors have … WebDec 9, 2024 · The first step of choosing a MOV is determining the continuous working voltage that will be provided across the varistor, you have to choose the varistor with … dauntless types of damage

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WebVaristors: Ideal Solution to Surge Protection If you’re looking for a surge protection device that delivers high levels of performance while address-ing pressures to reduce product … WebAn LV UltraMOV ™ Varistor can withstand higher surge current/energy and more surge strikes than the same size varistor from the standard Littelfuse series. For example, a new 10mm LV UltraMOV ™ Varistor is rated at 2000A max. surge current, which is four times higher than a standard one. The higher surge rating also can provide longer life and WebMar 13, 2024 · Varistors come in many shapes and sizes. These components are often very small, though their size is usually relative to the sort of device or appliance at issues. In … black adams online