In the 4P configuration of MCCB, you can connect the neutral & one phase in case of single phase application.
See a wiring diagram for NSX 100 ..630 Amps as attached. Although the attached diagrams are for 3P MCCB, you can use the same wirings by connecting the the neutral & one phase and leave the inner two poles blank of single phase application.
See a wiring diagram for NSX 100 ..630 Amps as attached. Although the attached diagrams are for 3P MCCB, you can use the same wirings by connecting the the neutral & one phase and leave the inner two poles blank of single phase application.