The Intermatic T101P201 Two Circuit Mechanical Time Switch is a heavy-duty industrial, commercial, and residential application timer with the highest motor load ratings in the industry. It features a plastic enclosure with pool heater protection, allowing up to 12 ON-OFF operations per day with a minimum time interval of 1 hour. This mechanical time switch comes with ON and OFF trippers included and is suitable for installation in most Intermatic enclosures.