Cable designations compared · How to read a Old VDE 0250 cable code
NYA vs NYM
Both designations are read in Old VDE 0250. The symbols they share mean the same; the rows marked below are where NYA and NYM differ.
NYA and NYM differ in: NYA: A = Single-Core Non-Sheathed Cable; NYM: M = PVC Outersheath For Indoor Cables.
NYA
| N | VDE Standard | in both |
| Y | Polyvynil Chloride (PVC) | in both |
| A | Single-Core Non-Sheathed Cable | only in NYA |
NYM
| N | VDE Standard | in both |
| Y | Polyvynil Chloride (PVC) | in both |
| M | PVC Outersheath For Indoor Cables | only in NYM |
Read by the deterministic decoder of this site from its symbol tables. Check the manufacturer's datasheet before you specify a cable.