{"id":242,"count":19,"description":"Thermally protected varistors are a combination of varistors (MOV)\nand temperature protection components (thermal fuses). With aging and\nIncreasing exposure to overvoltages degrades varistors and\nthe leakage current increases. In addition, leakage currents mean losses and they\ncorrode grounding systems. If the varistor is in the range of the\nThreshold voltage in operation it becomes very hot. This presents a fire hazard. For\nmaximum protection, a thermal fuse is inserted, which in the event of overtemperature\ntriggers. This separates the varistor from the rest of the circuit or even\nthe whole application disconnected from the power supply.\n","link":"https:\/\/www.alpha-therm.com\/en\/produkte\/overvoltage-protection\/thermally-protected-varistors\/","name":"Thermally protected varistors","slug":"thermally-protected-varistors","taxonomy":"product_cat","parent":281,"meta":[],"menu_order":34,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Thermally protected varistors - Alpha Therm<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alpha-therm.com\/en\/produkte\/overvoltage-protection\/thermally-protected-varistors\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermally protected varistors - Alpha Therm\" \/>\n<meta property=\"og:description\" content=\"Thermally protected varistors are a combination of varistors (MOV) and temperature protection components (thermal fuses). With aging and Increasing exposure to overvoltages degrades varistors and the leakage current increases. In addition, leakage currents mean losses and they corrode grounding systems. If the varistor is in the range of the Threshold voltage in operation it becomes very hot. This presents a fire hazard. For maximum protection, a thermal fuse is inserted, which in the event of overtemperature triggers. 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With aging and Increasing exposure to overvoltages degrades varistors and the leakage current increases. In addition, leakage currents mean losses and they corrode grounding systems. If the varistor is in the range of the Threshold voltage in operation it becomes very hot. This presents a fire hazard. For maximum protection, a thermal fuse is inserted, which in the event of overtemperature triggers. 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