SWITCH, OPTICAL SLOT, NORMALLY OPEN, 2.25" X 2.75" X 1.5", SUPPLY VOLTAGE RANGE 10-60 VDC, BLACK WIRE AVAILABLE USOAAA629AG5 SUPPLIER INFO:AAA629AG5SWITCH, OPTICAL SLOT, NORMALLY OPEN, 2.25" X 2.75" X 1.5", SUPPLY VOLTAGE RANGE 10-60 VDC, BLACK WIRE AVAILABLE