SKU: 3G3MX2-A4075-V2
Omron 3G3MX2-A4075-V2 MX2 Series VFD 7.5 kW 400V Three-Phase
Omron 3G3MX2-A4075-V2 MX2 series variable frequency drive, 7.5 kW (10 HP), three-phase 380–480 VAC input, with built-in STO, EMC filter and Modbus.
USD 298.00 per unit, volume discounts available
- In stock, ships in 24h
- 100% genuine Omron
- 1-year manufacturer warranty
- Worldwide delivery
Key Features
- 7.5 kW (10 HP) output, 17.5 A rated (ND) / 15 A (HD)
- Three-phase 380–480 VAC input, 50/60 Hz
- V/f, sensorless vector, and closed-loop vector control
- Built-in Safe Torque Off (STO) — SIL3 / PLe per IEC 61800-5-2
- Integrated EMC filter (C3) for industrial environments
- Built-in Modbus RTU; optional EtherNet/IP, DeviceNet, PROFIBUS, CompoNet cards
- Built-in brake chopper with external resistor option
- Detachable LED keypad with parameter copy function
7.5 kW MX2 Drive for Three-Phase 400 V Motor Control
The Omron 3G3MX2-A4075-V2 is a 7.5 kW (10 HP) variable frequency drive from the MX2 series, engineered for three-phase 380–480 VAC industrial motors. It combines high-performance vector control with a compact footprint and built-in safety, making it well suited to pumps, fans, conveyors, mixers, and general-purpose machine automation.
Drive control modes include V/f, sensorless vector, and closed-loop vector with optional encoder feedback card, supporting both constant-torque and variable-torque loads. The integrated Safe Torque Off (STO) function meets SIL3 / PLe per IEC 61800-5-2, allowing the drive to be used in safety-related stop functions without additional contactors.
An integrated EMC filter (C3) reduces conducted emissions for industrial environments, and the detachable LED keypad supports parameter upload/download for fast commissioning of multiple drives. Built-in Modbus RTU is standard; optional communication cards add EtherNet/IP, DeviceNet, PROFIBUS-DP, and CompoNet.
Comprehensive motor protection covers overload, overvoltage, undervoltage, overcurrent, ground fault, output phase loss, and heatsink overtemperature. The built-in brake chopper accepts an external braking resistor for dynamic-stop applications.
Typical Applications
- Centrifugal pumps and water-treatment skid control
- HVAC supply / return fans, AHU and chiller fans
- Conveyor systems in packaging and material handling
- Mixers, agitators, and blenders in process industries
- Compressors and dryer blowers
- Machine-tool spindle drives
- General industrial motor speed control up to 7.5 kW
Buying Checklist
- Confirm supply: three-phase 380–480 VAC; for 200 V class use AB-series, for single-phase input use AB- or A2-series.
- Verify motor FLA is within 17.5 A (ND) / 15 A (HD) at 400 V.
- Plan for an external braking resistor if the application requires dynamic braking or fast deceleration.
- Select encoder feedback card if closed-loop vector control is required.
- Order optional comms card (EtherNet/IP / DeviceNet / PROFIBUS) if the PLC network requires it.
- Install on a panel with adequate clearance for cooling airflow; ambient must stay below 50 °C (ND).
Technical Specifications
| Model | 3G3MX2-A4075-V2 |
|---|---|
| Series | MX2 (3G3MX2) |
| Rated Output Power | 7.5 kW (10 HP) |
| Rated Output Current | 17.5 A (Normal Duty), 15 A (Heavy Duty) |
| Input Voltage | Three-phase 380–480 VAC, ±10% |
| Input Frequency | 50/60 Hz ±5% |
| Output Voltage | 0–480 V (proportional to input) |
| Output Frequency | 0.1–400 Hz |
| Control Methods | V/f, Sensorless Vector, Closed-Loop Vector (with optional encoder feedback card) |
| Brake Chopper | Built-in |
| EMC Filter | Built-in (Category C3) |
| Communication | Modbus RTU (built-in); optional EtherNet/IP, DeviceNet, PROFIBUS-DP, CompoNet |
| Safety Function | Safe Torque Off (STO) — SIL3 / PLe per IEC 61800-5-2 |
| Operator Keypad | Detachable, 5-digit LED, parameter copy |
| Protective Functions | Overcurrent, overload, overvoltage, undervoltage, ground fault, phase loss, heatsink overtemperature |
| Operating Temperature | −10 °C to +50 °C (ND), −10 °C to +40 °C (HD, with derating) |
| Mounting | Panel mount (book-type / wall-mount, IP20 enclosure) |
| Mass | Approx. 4.2 kg |
Frequently Asked Questions
What size breaker and wiring does the 3G3MX2-A4075-V2 need?
Use a 25 A type-D or K circuit breaker on the input side, sized at 150–200 % of VFD input current to absorb inrush. Run shielded motor cables and keep them separated from signal wiring. Always include a line-side contactor driven by the safety circuit for emergency-stop compliance.
Can this VFD run from single-phase input?
No — A4 models require three-phase input. For single-phase 200 V supply use the 3G3MX2-AB015-V2 (200 V class single/three-phase input, derated). For 400 V single-phase input, use a step-up transformer or select a different MX2 model.
Does the 3G3MX2-A4075-V2 include STO?
Yes — Safe Torque Off is built in and rated SIL3 / PLe per IEC 61800-5-2. It removes drive output torque within milliseconds of the safety input opening, allowing integration into category-3 / PL d and higher stop functions without external contactors.
What braking options are available?
The drive includes a built-in brake chopper. Connect an external braking resistor sized to the application's deceleration energy and duty cycle. For vertical-axis holding, add an electromagnetic brake on the motor — the drive does not provide mechanical holding.
Can I use the 3G3MX2-A4075-V2 for pump pressure control?
Yes. The built-in PID controller maintains constant pressure, flow, or level using a 4–20 mA or 0–10 V transducer. Typical energy savings versus valve-throttling are 30–50 %. Sleep / wake and multi-pump lead-lag functions are supported via the MX2's application macro library.
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