60-point main unit with 32K-step EEPROM program memory
The Mitsubishi Electric FX3G-60MT/ESS is a 60-I/O main unit in the MELSEC-F SERIES, packing 36 integrated digital inputs and 24 transistor source outputs into a single chassis. It runs on 100-240 V AC and draws 40 W, with an IP10 protection class that suits clean, enclosed panel environments. Program memory is 32K steps stored in EEPROM, meaning no battery backup is needed for the program — the buffer battery is optional and only required for real-time clock retention. The basic instruction cycle time is 210 ns (LD) and 500 ns (MOV), fast enough for most packaging and material-handling sequences.
I/O capacity and expansion headroom
Local I/O is capped at 128 points, but with expansion modules the system handles up to 256 total I/O points. That gives you room to add analog, temperature, or additional digital cards without swapping the CPU. The 24 transistor outputs are source-logic (PNP), sourcing current to the load. Each output switches at transistor speed — no relay wear, so it's a good fit for high-cycle applications like pick-and-place or indexing conveyors.
Panel integration and environmental limits
Rated IP10, so it's intended for a sealed enclosure — not for washdown or dust-exposed locations. Operating ambient is 0 to 55 °C, which covers most control cabinet conditions without derating.
Sourcing and lifecycle position
This FX3G series CPU is in a mature lifecycle stage — still actively produced and supported by Mitsubishi Electric, but the platform has been superseded by the FX5U series for new designs. For existing BOMs or line expansions, the FX3G-60MT/ESS remains a valid, stocked choice. Sourced to order against your BOM quantity through independent distribution.