NC1 is the small contactor, NC2 the larger body. Coil voltage and the auxiliary contact are checked separately. A cheaper body does not forgive a loose terminal.
Chint
NC1 ve NC2
NC1 is the small contactor, NC2 the larger body.
Questions
Is this page that company's catalog?
No. I describe the families I meet on site. The order code is read off the label. The price is written after measurement.