I need to replace an induction hob that has been broken with another of the same model (IKEA Matmässig, just for sake of completeness).
Original connection options
The original connection to the mains was made according to the highlighted scheme below, 400V 2L-1N, corresponding to the two-phase set-up that is very common in the Netherlands.
The only difference is that the connection to the Neutral terminal uses both the blue and grey wires to the Perilex-type plug. On the plug itself, the grey wire corresponds to the L3 pin. However, the actual supply to the socket is two-phase, and the pole corresponding to L3 on the socket has 0 volts on it.
Original connection options
The new version of the hob is slightly different. The connection options include a 400V two-phase connection scheme, and an additional scheme for the NL. It seems to me that either of these would work fine.
My questions:
- what's the actual difference between the first and third schemes shown below?
- if the Perilex system has a pole that is sometimes live (three-phase) and sometimes neutral (two-phase) isn't that a potential for unfortunate misunderstandings?