I am using "Raco Squeeze Connector 1/2" Trade Size Nonmetallic Sheathed
Cable" clamps to run some "12/2 with ground" cables. How many "12/2
with ground" cables can I run though one of these connectors? I'd like
to run two of the cables through one connector.

The specs say... "Single Run 2#14 - 2#10, 3#14 or 3 #12 with or without
ground. Double Run 2#14" ...but I don't know what that means. Here is
the clamp in question:

http://www.hubbellcatalog.com/raco/R...et.asp?PN=2711

Thanks for your help.