Confirming PSU spec for steppers.

[Rogue]

For the record, I've been in electronics manufacturing on and off for over 30y and have seen most levels of stupidity :)

And I'm grateful for the chance to be able to draw on that experience, along with the experience and knowledge that Jazz and Jonathan have brought to the discussion.

Fuses - now that never occured to me but sounds like a rather good idea...

[irving2008]

...

Fuses - now that never occured to me but sounds like a rather good idea...

Err.. yes. Fuse the primary side with a slow-blo fuse rated approx 50% - 100% more than the likely operating current... for a 625VA transformer thats a 4 or 5 amp fuse. You can fuse the secondary with a 15A slo-blo as well if you want. Put the fuse between the transformer and the rectifier.