These are Hella battery switches with heavy-gauge battery wires, used on '03-04 Land Rover Range Rovers as transport cutoff switches. They're rated at 100A continuous; 1000A @12V for 10 sec. The battery terminals are unusual, but also high-quality. The wire with the post is about 17" and the other is about 28". The switch is on when the red key is inserted, pushed in, and turned to lock. The nosepiece of the switch is 1 1/4" long from the mounting face. The wires have heat-shrink wrapping at the switch terminals, but they can be removed easily, exposing posts with nuts. Here's the Hella page:
http://www.hella.com.au/cgi-bin/catalogue.pl?flcmd=preview&flmaint=290 
