1746 No4i

Anyone know the recommended fusing for the 1746 NO4I analog output module?

http://www.bussmann.com/apen/pubs/spd/
That link offers information to assist on selecting fuses.

Here is a wiring diagram manual for use with AB modules:
http://literature.rockwellautomation.com/idc/groups/literature/documents/wd/cig-wd001_-en-p.pdf

I think in most cases you just fuse the supply.

We actually do fuse the analog outputs on these modules. Our technicians like it that way because it aids in isolation during troubleshooting.

Just as an offside comment, here is a trick I have used with great success on two jobs where I had total design control over the IO.

Simply this. Put an ordinary forward biased IN4001 diode (or similar) in series with all analog IO.

The 0.6v drop is of no consequence in normal operation; BUT all you need to do to measure the current in the loop is pop your meter across the diode and viola!!... there is your current reading.

No links, fuses or any break of the loop at ALL!