... power technic , it is a new non-contactor electronic switch in the logic control circuit , similar with electric-magnetic ... control of a trigger-signal. CHARACTERISTIC SSR is a contactless switch compromising of SOLID STATE components,its Feature:ate,hig- ... reliability,contactless,non-speark,non-pollutant,excellentsulation& withstanding high voltage(2.5KV), speed switch-over, and can ...