INVT GD350A 15 kW VFD | 400 V 3-Phase Inverter (Dual-Rating)
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Precise control of speed, torque, and position
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Rated power: 15 kW (normal duty) / 11 kW (heavy duty)
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Operates on 3-phase 400V supply
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Advanced motor auto-tuning for asynchronous and synchronous motors
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Supports dynamic, DC, magnetic, and short-circuit braking
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Built-in braking chopper and EMC filter
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Modular design with 3 expansion slots for PLC, I/O, communication, and feedback cards
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Multi-motor control capability
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Over 30 built-in protections (overcurrent, overvoltage, undervoltage, phase loss, overload, overheating)
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Smooth motor restart with speed tracking after power interruptions
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Flexible communication options: Modbus (standard), CAN, Profibus DP, Profinet (optional)
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IoT-enabled for remote monitoring and control
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User-friendly multilingual LCD display
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High overload capacity: 150% for 1 min, 180% for 10 s, 200% for 1 s
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Ideal for pumps, HVAC units, conveyors, packaging lines, machine tools, textiles, renewable energy projects
Description
The INVT GD350A 15 kW VFD (400 V 3-Phase, Dual-Rating) offers advanced motor control for both heavy-duty and normal-duty applications. Designed for high-performance industrial environments, it ensures precise speed, torque, and position control with exceptional reliability. Thanks to its integrated PLC functions, dual-rating flexibility, and communication via Modbus RTU/ASCII, the GD350A 15 kW delivers energy-efficient operation for pumps, fans, conveyors, HVAC, packaging, and renewable-energy systems.
Key Features
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Power Rating: 15 kW (Normal Duty) / 11 kW (Heavy Duty)
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Input Voltage: 3-phase 400V AC
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Precision Control: Speed accuracy ±0.2% (SVC), ±0.02% (VC); torque control precision: 10% (SVC), 5% (VC); position control within ±1 pulse
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Motor Compatibility: Supports asynchronous and synchronous motors
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Starting Torque:
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Asynchronous motor: 0.25Hz / 150% (SVC)
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Synchronous motor: 2.5Hz / 150% (SVC), 0Hz / 200% (VC)
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Advanced Control and Reliable Performance
The INVT GD350A 15 kW delivers stable, high-precision motor control even under challenging load conditions.
It features:
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Ride-through capability: Keeps the motor running briefly during power dips using residual energy.
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Speed tracking restart: Enables smooth restarts on conveyors and process lines.
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Automatic motor tuning: Optimizes performance for both asynchronous and synchronous motors.
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Integrated braking circuit: Eliminates the need for external braking modules, reducing panel complexity.
Optimized for Industrial Applications
Engineered for demanding process and energy environments, the GD350A 15 kW is widely used in:
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Pumping and HVAC systems
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Material handling and conveyors
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Packaging and machine tools
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Textile and food processing equipment
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Renewable and hybrid energy systems
Each configuration benefits from intelligent energy management and adaptive torque control for maximum efficiency.
Braking & Stall Prevention
To protect both motor and load, the GD350A 15 kW supports multiple braking methods, including:
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Dynamic, DC, and magnetic braking
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Stall prevention with overvoltage and overcurrent regulation
This ensures smooth deceleration and system stability under variable conditions.
Safety and Protection
Built to meet IEC 61800-5-2, the GD350A 15 kW includes:
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Safe Torque Off (STO) for certified motor shutdown
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30+ fault protections (overcurrent, overheating, phase loss, overload, etc.)
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Dual-rating overload capacity:
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150 % for 60 s (Heavy Duty)
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120 % for 60 s (Normal Duty)
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Flexible Interface & Connectivity
The GD350A 15 kW supports multiple expansion and communication options:
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3 slots for PLC, I/O, communication, or encoder feedback cards
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Supported protocols: Modbus, CANopen, Profibus DP, Profinet, EtherNet/IP, Modbus TCP
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PC connection via INVT Workshop (USB-RS485 / Ethernet)
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Optional Bluetooth/Wi-Fi for remote monitoring up to 30 m
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Multi-language LCD display and data logging via USB
Why Choose the INVT GD350A 15 kW
The INVT GD350A 15 kW combines precision control, flexible integration, and robust protection — making it a preferred choice for system integrators and OEMs.
Its dual-rating design offers the right balance between performance and efficiency, ensuring long-term reliability in continuous industrial operation.
See our full range of 400 V variable frequency drives, covering all power ratings from 0.75 to 500 kW.
Additional information
| Brake Chopper | |
|---|---|
| Communication Protocols | Ethernet/IP, Profinet, CAN Master/Slave, etc. (extension card is needed), Modbus RTU & ASCII |
| Control Methods | SVPWM, SVC (Sensorless Vector Control), VC (Vector Control with Encoder) |
| Dual Rating Capability | Dual Rating |
| EMC Filter | |
| Input Voltage | |
| Motor Compatibility | Asynchronous Motors, Synchronous motors |
| Mounting Type | Wall and Flange Mounting |
| Safety Features | |
| User Interface | Multi-function LCD keypad |
Specification
| P (Normal Duty) | Motor Rated Power | kW | 15 |
| Rated Current | A | 32 | |
| G (Heavy Duty) | Motor Rated Power | kW | 11 |
| Rated Current | A | 25 | |
| Line Voltage, Frequency | AC 3-ph. 380 V … 440 V (-15% … +10%), 50 Hz/60 Hz (± 5%) | ||
| Output Voltage | 3-ph. 0 V … 480 V (max. input voltage) | ||
| Overload Capacity | 150% for 60s in G setting (Heavy Duty), 120% for 60s in P setting (Normal Duty) | ||
| Output Frequency | 0 … 590 Hz | ||
| Control Inputs | Analog: 2 inputs (AI1: 0 … 10 V / 0(4) … 20 mA; AI2: -10 … 10 V), optionally expandable | ||
| Digital: 6 programmable inputs, including 2 high-speed inputs (50 kHz) for speed setpoint or actual value via incremental or pulse encoders, optionally expandable | |||
| Control Outputs | Analog: 1 programmable output 0 … 10 V / 0(4) … 20 mA, optionally expandable | ||
| Digital: 2 programmable outputs, one of them high-speed (50 kHz), potential-free, optionally expandable | |||
| Relays: 2 programmable changeover contacts (NO/NC), optionally expandable | |||
| Interfaces | RS485 (terminals) as standard, up to 3 freely configurable option interfaces for communication modules, terminal expansions, feedbacks, and PLC cards | ||
| Brake Chopper | Integrated | ||
| EMC Filter | Integrated IEC61800-3 C3; IEC61800-3 C1 & C2 optional | ||
| DC Reactor | – | ||
| Safety Functions | Two-channel STO (Safe Torque Off) (IEC61800-5-2, SIL2, PL “d”) | ||
| Protection Rating | IP20, optional IP55 | ||
| Ambient Temperature | -10°C … +50°C; power reduction required if ambient temperature exceeds +40°C, air cooling | ||
| Certification | CE, TÜV | ||
| Dimensions | 170 mm x 320 mm x 220 mm | ||
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FAQ
Q1: What is the input voltage for the INVT GD350A 15 kW?
The INVT GD350A 15 kW operates on a three-phase 400 V AC power supply (380–440 V, ±10 %), making it suitable for most industrial power systems in Europe.
Q2: What types of motors are compatible with the INVT GD350A 15 kW ?
The GD350A 15 kW supports both asynchronous (induction) and synchronous motors, offering high flexibility for modern automation setups.
Q3: Can the GD350A 15 kW handle overload conditions?
Yes. The INVT GD350A 15 kW provides 150 % overload capacity for 1 minute, 180 % for 10 seconds, and 200 % for 1 second, ensuring stable performance under heavy loads.
Q4: What safety features are built into the INVT GD350A 15 kW ?
This VFD includes Safe Torque Off (STO) for secure motor shutdown and over 30 fault protection functions, such as overcurrent, overvoltage, undervoltage, overheating, and phase-loss protection.
Q5: How precise is the speed control of the INVT GD350A 15 kW ?
The GD350A 15 kW VFD achieves ±0.2 % precision in sensorless vector control (SVC) and ±0.02 % in full vector control (VC), enabling extremely accurate motor speed regulation.
Q6: Which industrial applications are best suited for the GD350A 15 kW ?
The INVT GD350A 15 kW is ideal for pumps, fans, conveyors, HVAC systems, compressors, packaging, textiles, and renewable-energy systems, combining reliability with high-efficiency control.
Q7: What communication protocols are supported by the GD350A 15 kW?
The INVT GD350A 15 kW supports Modbus RTU, CANopen, Profibus DP, Profinet, EtherNet/IP, and Modbus TCP, allowing seamless integration into industrial networks.
Q8: Can the INVT GD350A 15 kW be monitored or configured remotely?
Yes. The GD350A 15 kW offers remote configuration via USB-RS485, Ethernet, UDP, MQTT, and optional Bluetooth/Wi-Fi cards, enabling IoT-ready monitoring and data access.
Q9: Does the INVT GD350A 15 kW include braking functions?
Yes. It supports dynamic, DC, magnetic, and short-circuit braking, ensuring reliable deceleration and motor protection during load transitions.
Q10: Is data logging available on the INVT GD350A 15 kW ?
Yes. The GD350A 15 kW features a USB port for data logging and backup, allowing users to store and review operational parameters and performance history.
