Your PP30 connection is dropping under load because the contact was the wrong fit for your lead. This silver-plated 30A contact is spec'd for AWG12-16 wire in the APP PP30 series. Crimp it to your gauge, seat it in the housing, and the connection holds where it should. One good contact beats three dodgy ones pulled from a mixed bin
| brand | JAYCAR |
| series | APP PP30 |
| current_rating | 30A |
| wire_gauge | AWG12-16 |
| finish | Silver plated |
| type | Individual contact |
| part_reference | 1331-BK |
| rrp_aud | 5 |
