A30-30-10 is a 220-230VAC coil operated contactor that can switch up to 690 3VAC (3-Phase VAC if you aren’t familiar). Please see the attached datasheet below for full details:
A700000008344321.pdf (96.2 KB)
The contactor does have an Auxiliary contact that is Normally Open.
Potential Cross Option
I was able to find two potential crosses for this item that are also made by ABB (sold from a Marketplace vendor called Springer Controls. The first part number is 4908-AF52-30-11-13-ND (AF52-30-11-13). This style is quite similar compared to the original:
Original
Keep in mind these are reference photos only, there might be some change on the actual parts. Check both datasheets for any drawings.
Cross Reference
Here is the link to the datasheet.
Both auxiliary contacts would be side mounted.
Secondary Option
Another potential cross would be 4908-AF26-30-11-13-ND (AF26-30-11-13) from ABB. The link to the datasheet is here.