Contactors have NC and NO contacts, but what are 3P, 2HP?

Question

Electronic components

there is a contactor CJX2-D09, 3P + NC, coil 36AC, can I replace it with RPL 1220, 4B, 36V, 50Hz if I need 1NC and 1NO according to the circuit?

Answer 1

3P is 3 Phase (Phases) - always NO (N.R.), the additional contact is usually weaker than the phase current. but in D09 they are the same as the phase ones.