L 1 and L2 is live, N1 and N2 is neutral,, AND E is earth, for 220v to 240v the other numbers are for higher power input, just make ALL power is off when working in the live feed) before you start googel the model of your new cooker for the wireing instructions , L1 L1 N2 N1, . and you will find a (PDF) on it,