Adding to its existing protective element offering of fuses and filters, Schurter has released a range of radial leaded varistors, also referred to as MOVs (metal oxide varistors), which help to protect electronic circuits against surge transients, such as can be caused by lightning strikes and switching of contacts and inductive loads. These MOVs are suited to a wide variety of applications including switch mode power supplies, ballasts and motor protection used in areas such as industry, telecom and medical technology as well as in consumer goods.
The range includes the AVTS variants for secondary protection, AVTP for primary protection and AVTT for 3-phase applications. The varistors, all approved according to IEC 61051, UL 1449, UL 1414 as well as CSA C22.2 and conforming to RoHS regulations, are available in plastic bags, taped and reeled and in ammo packaging.
The AVTS range covers voltages from 11 to 95 V a.c., peak current (8/20 μs) from 250 A to 10 kA and energy absorption (10/1000 μs) from 0,6 to 106 J in disc sizes between 5 and 20 mm in diameter. The AVTP range covers voltages from 120 to 360 V a.c., peak current (8/20 μs) from 800 A to 13 kA and energy absorption (10/1000 μs) from 8 to 440 J in disc sizes between 5 and 25 mm in diameter. The AVTT range covers voltages from 390 to 1000 V a.c., peak current (8/20 μs) from 3,5 kA to 13 kA and energy absorption (10/1000 μs) from 25 to 875 J in disc sizes between 10 and 25 mm in diameter.
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