Part of the Omron 3G3MX2 MX2 Inverter / VFD series — see the full model table, lifecycle status and replacement parts.
Omron 3G3MX2-A4040-V2 — 4 kW MX2 V2
SKU: 3G3MX2-A4040-V2USD 255.00
MX2 V2 inverter, 4.0 kW / 5 HP heavy-duty, three-phase 380-480 VAC, 9.2 A output, built-in EMC filter, Safe Torque Off (STO), Modbus RTU.
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Product Overview
The Omron 3G3MX2-A4040-V2 is a 4.0 kW (5 HP) variable-frequency drive from the MX2 V2 series, running on a three-phase 380-480 VAC supply. It is manufactured by Omron Corporation. Hengyixin Automation ships this drive from Xiamen with the matching motor or PSU pairing recommended in the related products row below.
9.2 A rated output current Three-phase 380-480 VAC input, 50/60 Hz Operating temperature -10 to +50 °C Safe Torque Off (STO) SIL3 / PLd, TÜV certified
Key specs: Model 3G3MX2-A4040-V2; Rated Output (CT/HD) 4.0 kW / 5 HP; Input Voltage Three-phase 380-480 VAC, 50/60 Hz; Rated Output Current 9.2 A (heavy duty / CT); Output Frequency 0.1 to 400 Hz; Control Methods V/f, sensorless vector (optional closed-loop with encoder card); Built-in EMC Filter Yes (C3 / industrial environment); Communication Modbus RTU (RS-485) built-in.
Key Features
- 9.2 A rated output current
- Three-phase 380-480 VAC input, 50/60 Hz
- Operating temperature -10 to +50 °C
- Safe Torque Off (STO) SIL3 / PLd, TÜV certified
- SKU: 3G3MX2-A4040-V2
- Series: MX2 V2 series inverter
- Voltage: 380-480 VAC
Best-Fit Applications
- Mid-sized conveyor drive on a packaging or material-handling line (4 kW class)
- Mixer or agitator drive in a process skid where sensorless vector gives holding torque at low speed
- Machine-tool spindle where the optional encoder feedback card adds closed-loop speed accuracy
Buying Checklist
- Choose 3G3MX2-A4040-V2 for a 4 kW 400 V motor in HD mode; pick the next size up (A4055-V2, 5.5 kW) for headroom.
- Pick the V2 (not V1) generation for the faster CPU, simpler auto-tuning, and detachable keypad with parameter copy.
- Use the built-in STO input on the safety circuit — it removes the need for a contactor on the safety stop.
Technical Specifications
| Model | 3G3MX2-A4040-V2 |
|---|---|
| Series | MX2 V2 series inverter |
| Rated Output (CT/HD) | 4.0 kW / 5 HP |
| Input Voltage | Three-phase 380-480 VAC, 50/60 Hz |
| Rated Output Current | 9.2 A (heavy duty / CT) |
| Output Frequency | 0.1 to 400 Hz |
| Control Methods | V/f, sensorless vector (optional closed-loop with encoder card) |
| Built-in EMC Filter | Yes (C3 / industrial environment) |
| Communication | Modbus RTU (RS-485) built-in |
| Optional Comm Cards | EtherCAT, Profibus, DeviceNet, CompoNet |
| Safety Function | Safe Torque Off (STO), SIL3 / PLd (IEC 61800-5-2) |
| Operating Temperature | -10 to +50 °C |
| Mounting | Panel-mount (IP20); flange-mount kit optional |
FAQ for 3G3MX2-A4040-V2
What is the difference between 3G3MX2-A4040-V2 and 3G3MX2-A4040-V1?
Both are 4 kW MX2 inverters, but the V2 generation has a faster processor, simpler auto-tuning, and a detachable keypad with parameter copy as standard. The V2 also ships with the same control terminal layout as the V1, so wiring is interchangeable. Pick V2 for new installations; the V1 is a legacy part that Omron has been phasing out.
Does the 3G3MX2-A4040-V2 have Safe Torque Off?
Yes. The V2 has a built-in Safe Torque Off (STO) input that meets SIL3 / PLd per IEC 61800-5-2, TÜV certified. Wiring the STO input to your safety circuit removes the drive output without cutting main power, so restart is faster after a safety stop.
Can I run the A4040-V2 from a single-phase 200 V supply?
No. The A4040-V2 is a 400 V three-phase input drive. For 200 V single-phase input at this power level, look at the MX2-AB series (single-phase 200 V input drives), but those only go up to about 2.2 kW. For 4 kW on a 200 V supply, you need a three-phase 200 V drive (MX2-A2037-V2 or similar).
What communication cards are available for the MX2-A4040-V2?
Built-in Modbus RTU on the RS-485 port as standard. Optional plug-in cards add EtherCAT (3G3AX-MX2-ECT), Profibus, DeviceNet, and CompoNet — pick the one that matches your PLC fieldbus. The V2 generation supports the same communication-card set as the V1.
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