Xiamen Set Electronics Co.,Ltd is engaged in the research & development and production of thermal-cutoffs, thermal varistor and thermally protected metal oxide varistor (TMOV). Our thermal-cutoffs and thermal varistor have received UL, CUL, TUV, VDE, PSE and CCC certificates. We can also produce Pb-free thermal-cutoffs that follow requirements of the RoHS Directive and SONY (SS-00259). We have successfully developed a new MOV(metal oxide varistor) with built-in alloyed thermal-cutoff - TMOV, which effectively guards against fire hazards caused by degradation and transient over-voltage of MOVs. We can design thermal varistor with remote controls, separate from their alarm circuits according to your requirements. It is suitable for the use in transient voltage surge suppressor (TVSS) applications in electrical circuits and surge absorbers.