... of breaking surge current. Thyristor turn 20ms to maintain relay contacts within the switch to magnetic bearing, no pressure drop, no wear ... Air humidity at 40`C does not exceed 90% of the.4. The surrounding environment without corrosive gas, non conductive dust, there ... damaged.3. Compound switch due to the presence Latching Relay conversion process. Does not apply to, the working hours of less than 1 ...