How many outgoing ways does a MG25C2/MG25C4 provide?

The MG25C2 has 13 single-pole (SP) ways in total, including the ways used by both the incomer and the outgoers.

For example:

The MG25C2 accepts a 4-pole incomer, leaving 9 SP ways, or 3 triple-pole (TP) ways ====> Total = 13 SP ways

The same calculation applies to the MG25C4, which has 16 SP ways in total.

See below from the catalogue: