My Multiplus ii unit does not have 4 AC-in connection ports, only has N, PE, L.
My understanding is that 50amp power has two hot legs L1 and L2. The manual even states that there should be 4 connection units in the 'AC-in' area.
How can this unit still get 50amps of AC-input?
What am I missing? Purchased the unit in Canada from a local supplier.