... module 1) 250-300Amp,800-1600V 2) Stable performance 3) UL registered,E304417 thyristor module,scr module,dual thyristor moduleMTC250A/1600V1 ... And Silicon Rectifier Modules 2011/04/01 --- 2014/12/31 UL Underwriters Laboratories E304417 BR, GBPC, KBPC, KBPC-W,MB, MT, QL, SQL ...