Techcross TC000829 ABB AC500-eCo PM554-RP CPU module used as the local PLC inside Techcross TSU (ballast side) and ANU (deballast side) cabinets. Used in potable and process water treatment loops covering pretreatment, disinfection and post-treatment polishing.
| Manufacturer | Techcross (OEM-listed) |
| Techcross part code | TC000829 |
| Designation | ABB AC500-eCo PM554-TP-ETH / PM554-RP CPU |
| Equipment position | TSU / ANU |
| Application | Electro-Cleen Ballast Water Management System |
| Reference vessel | IMO 9284374 critical-spare-parts list |
| Material | Marine-grade composite per OEM spec |
| MOQ | 1 |
ABB PM554-RP / PM554-TP-ETH — used as both TSU PLC and ANU PLC on Techcross Electro-Cleen; single spare covers both positions.