607234 is a high voltage NLEPR (no lead ethylene propylene rubber) PVC jacket cable. The rated voltage is 2.4kV. The wire gauge is 2/0 with 19 strands. This cable is suitable for direct burial and has other environmental protections according to the specification sheet I found.
Alternatives I Found
The first option I found was our part number 2337-31670193-ND (manufacturer part number 31670193). This item doesn’t really have many special features compared to the original. Please note that this wire does not have the same voltage rating. It all depends on your application. If you are working with anything over 600V, please select a different cable.
This other 600V cross I found does have some environmental protections. The DigiKey part number is 2337-7671366-ND (manufacturer part number 7671366).
If you are looking for a higher voltage, the last cross we have can go up to 1kV. The DigiKey part number is 4903-CFPE-700-01-DS-ND (manufacturer part number CFPE-700-01).