HYBRID RELAY AND CONTROL TERMINAL APPARATUS

摘要

A hybrid relay includes a first mechanical contact switch opened and closed by a first driving unit, a second mechanical contact switch opened and closed by a second driving unit operating independent of the first driving unit, and a semiconductor switch serially connected to the second mechanical contact switch. In the hybrid relay, the first mechanical contact switch is connected in parallel to the second mechanical contact switch and the semiconductor switch which are connected serially, on a power feed path to a load from a power source; the first mechanical contact switch is a latch type mechanical contact switch; and each of second mechanical contact switch and the semiconductor switch becomes conductive before opening and closing of the contact portion of the first mechanical contact switch and becomes non-conductive after opening and closing of the contact portion of the first mechanical contact switch.