MPN: FX3U-128MR/ES-A — industrial control spare part, in stock at TGK Parts.
The FX3U-128MR/ES-A is the largest base unit of the Mitsubishi FX3U family — 64 digital inputs and 64 relay outputs in one compact body, for high-density machine control without a remote I/O system. The FX3U platform remains one of the most widely installed small-PLC families in Asia and the Americas, and the 128-point unit is the standard choice when machines outgrow 64-point CPUs.
Power-section and output-relay failures dominate; we test all inputs and all 64 output relays under load, and verify the programming port.
| MPN | FX3U-128MR/ES-A |
|---|---|
| Type | FX3U base unit (PLC) |
| Inputs | 64 digital inputs |
| Outputs | 64 relay outputs |
| Power | AC 100–240 V |
| Series | Mitsubishi FX3U |
| Condition | New / tested used |
| Warranty | 12 months |
Replacement and spare part for industrial automation equipment — production lines, CNC machines, packaging machinery, textile machinery, printing equipment and more.
Yes — send the project file; we offer program loading and run verification.
FX3U accepts most FX2N/FX3U special adapters — send your module list and we confirm.
Every relay is switched under load with contact resistance measured; stuck relays disqualify the unit.