The shorting cap and open cap are used to cover the photoeye location when a photocontrol is not desired.
The shorting cap keeps the lights on all the time unless the light is turned off manually. There is a shorting circuiting connection between line and load contacts.
The open cap keeps the lights off all the time and there is NO shorting circuiting connection between line and load contacts.

SPECIFICATIONS AND CHARACTERISTICS:

ANSI C136.10 & UL773 Standard 

● UL Listed. Reference No.: E178670

● Rated Voltage: 480VAC (MAX)
● Load Rated: Max current 15A
● Operating Temperature: -40℃ to +70℃
● Housing: UV stabilized PC.
● Size: 74mm or 80mm