With coupled autopilot it is reduced. 600m as far as I remember. I am sure someone will turn up with the EU OPS reference.
Edit - just checked my ops manual, and it's system minima for single pilot with coupled autopilot (ie down to 550m) with approach lights serviceable. 600m is for no centreline/touchdown zone lights.
Last edited by Dr Eckener; 20th Nov 2009 at 23:07.