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Mitsubishi Electric FX3G-40MR/DS — PLCs (Programmable Logic Controllers)

Mitsubishi FX3G-40MR/DS PLC, 40 I/O, DC Power, Relay Output

MPNFX3G-40MR/DS

Mitsubishi Electric FX3G-40MR/DS programmable logic controller, FX3G series, DC power supply, 24 VDC sink/source inputs, relay outputs, 40 total I/O points, main unit M.

$247.00Ref. price · indicative, final on quote
Mitsubishi Electric FX3G-40MR/DS datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

FX3G-40MR/DS — Mechanical
ParameterValue
Weight0.7 Kg
FX3G-40MR/DS — Other specifications
ParameterValue
Main unitM
Series nameFX3G
Product typeProgrammable Logic Controller
Total number of input and output points40
Power supply, input (output type, connection on terminal block)R/DS = DC power supply/24V DC (sink/source) input/Relay output

Product details

DC-Powered 40-Point Controller with Relay Outputs

The FX3G-40MR/DS is a Mitsubishi Electric programmable logic controller from the FX3G series, configured as a main unit (M) with 40 total input and output points. It runs on a DC power supply with 24 VDC sink/source inputs and relay outputs — the 'R/DS' suffix means relay output type and DC power supply, respectively.

What the 40 I/O and Relay Outputs Mean for Your Machine

Forty I/O points — 24 inputs and 16 outputs in typical FX3G allocation — handle medium-size machine control: a packaging line section, a conveyor zone, or a small assembly station. Relay outputs switch up to 2 A per point resistive (typical), making them suitable for solenoid valves, contactor coils, and indicator lamps where the load current is moderate and switching frequency is low. DC power supply (24 VDC) means the PLC shares the same rail as sensors and actuators in a standard 24 V control panel — no separate AC transformer needed for the logic power.

Frequently asked questions

What is the closest functional second-source to the FX3G-40MR/DS?

The FX3S-30MR/ES is a smaller sibling in the same family — it offers 30 I/O points (16 inputs, 14 outputs) with AC power supply and relay output, compared to the FX3G-40MR/DS's 40 I/O and DC power. The FX3G has a larger program memory (16,000 steps vs 4,000 steps) and supports more expansion modules. They share the same programming environment but are not pin-compatible drop-in replacements; a panel rewire is required.

MPN
FX3G-40MR/DS