Bosch 75A Relay with switch, wiring q

i picked up my 75a relay from the parts store today, it came with no wiring instructions. he photo copied the back of another 5-pin relay for me (bosch is 4), and told me to use the numbers on it for reference. i did a search when i came home, and found the suggestions on here to be different for the most part. the photocopy i have, suggests i use this wiring method;

pin 30- + fan wire.
pin 85- ground wire off battery
pin 86- + switch wire
pin 87- + 12v off battery

then a seperate 12v battery power wire to the switch.
is this the correct method? im using a 50a switch, 2 prong.

how exactly does this get wired in if the info on this copy is not correct?

ok. i sent you a pm regarding just wiring in a fan controller while im attempting to do this.

what size fuse is correct for the power wire? 30 amp?