Instead of looking for a current could you instead look for a lack of current? If you used an inline module (Instead InlineLinc or Z-wave inline module) you could use a plugin like Device Extensions to report on how many minutes since it was last updated and give you a notification if it surpasses a predetermined number of minutes.
The 220v is a tricky option but I know there is an Elk 220v module that you can get that is inline.