International Appliance Manufacturing 2008 - (Page 29) Figure 2. the thermo-fuse will open. This will effectively disconnect the damaged varistor from the circuit and prevent sustained follow current through the MOV portion. Proper design would be to incorporate an indicator circuit (LED) to alert the operator that the Thermally fused MOV has failed and needs to be replaced. Also the AC line should be properly fused for the higher currents, and a metallic enclosure should be used. Figure 3. International Appliance Manufacturing 2008 IAM01084World.indd 1 12/10/07 10:31:57 AM 29 http://www.worldproducts.com http://www.worldproducts.com
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