INVT GD350A 2.2 kW VFD | 400 V 3-Phase Inverter (Dual-Rating)
CHF 325.00 excl. VAT, free Shipping
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Power rating: 2.2 kW (normal duty) / 1.5 kW (heavy duty)
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Input voltage: 3-phase 400V AC
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Compatible with asynchronous and synchronous motors
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Control modes: V/F, sensorless vector control (SVC), full vector control (VC)
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Built-in braking options: dynamic, DC, magnetic, and short-circuit braking
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Motor auto-tuning for both asynchronous and synchronous motors
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Smooth speed tracking across different control modes
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Integrated Safe Torque Off (STO) safety function
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Speed control precision: ±0.2% (SVC), ±0.02% (VC)
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Starting torque up to 200% at 0 Hz (VC mode)
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Communication interfaces: RS485 (Modbus), Ethernet, WiFi, Bluetooth
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PC software: INVT Workshop for USB, Ethernet, or cloud connection
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Expandable with optional PLC, I/O, and feedback modules (3 slots available)
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IoT-ready for remote monitoring and control via PC or mobile app
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LCD display with multi-line, multi-language interface and directory navigation
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Advanced digital filtering for noise immunity in industrial environments
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I/O configuration: 4 digital inputs, 2 analog inputs, 2 high-speed pulse inputs, 1 digital output, 1 high-speed pulse output, 2 analog outputs, 2 relay outputs
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Over 30 built-in fault protection features
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USB interface for data backup and parameter transfer
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Suitable for HVAC systems, pumps, conveyors, and other industrial applications requiring high torque at low speeds_
In stock
Description
The INVT GD350A 2.2 kW 400 V 3-phase (Dual-Rating) is specifically designed for precise control of asynchronous and permanent magnet motors. With integrated STO safety, braking unit, and flexible digital interfaces, The GD350A 2.2 kW ensures reliable and energy-efficient operation in demanding industrial applications such as pumps, fans, conveyors, and automation systems.
Key Features of INVT GD350A 2.2 kW 400 V 3-Phase (Dual-Rating)
Power & Input
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Power Rating: 2.2 kW (Normal Duty) / 1.5 kW (Heavy Duty)
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Input Voltage: 3-phase 400 V AC
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Suitable for both asynchronous and synchronous motors
Control & Performance
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Control Modes: V/F, SVC, VC
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Speed Control Accuracy: ±0.2% (SVC), ±0.02% (VC)
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Starting Torque:
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Asynchronous: 0.25 Hz / 150% (SVC)
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Synchronous: 2.5 Hz / 150% (SVC), 0 Hz / 200% (VC)
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Torque Control Accuracy: ±10% (SVC), ±5% (VC)
Braking & Motor Safety
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Integrated Braking Chopper for efficient deceleration without external components
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Dynamic, DC, Magnetic, and Short-Circuit Braking for various industrial loads
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Reliable operation even in frequent start/stop cycles
Protection & Reliability
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Overvoltage, Overcurrent, Stall Protection during acceleration and deceleration
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30+ fault protections: phase loss, overheat, overload, under-voltage
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Safe Torque Off (STO) for certified safety shutdown
Control & Monitoring Capabilities
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Motor Auto-Tuning for precise performance with both motor types
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Accurate Speed Tracking to reduce shocks during transitions
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Position Control Accuracy: ±1 pulse
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Advanced Digital Filtering for robust anti-interference
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IoT-ready: remote monitoring and control via PC or smartphone
Communication & Remote Control
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Built-in RS485 with Modbus® RTU/ASCII for seamless integration
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Optional Communication Cards: Ethernet®, CANopen, Bluetooth, Wi-Fi
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USB Interface: for backup, parameter setting, and application curve recording
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INVT-Workshop Software: PC connection via USB-RS485 adapter; cloud connectivity via UDP/MQTT
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Multi-line LCD Display: multi-language, directory-indexed navigation for easy configuration
Inputs, Outputs & Expansion
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Digital Inputs: 4 standard, plus 2 high-speed pulse inputs
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Analog Inputs: 2 for voltage/current signals
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Outputs: 1 digital, 1 high-speed pulse, 2 analog, 2 relays
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3 Expansion Slots: support additional I/O, PLC, feedback, or communication modules
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Integrated C3 EMC Filter for industrial noise immunity
Operation During Power Interruptions
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Utilizes residual energy to maintain operation during brief outages
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Ensures minimal downtime and continuous motor control
Typical Applications for INVT GD350A 2.2 kW 400 V
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HVAC systems: fans, compressors
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Pumps and blowers for water/wastewater or industrial fluids
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Conveyors, textile machinery, and automated production lines
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Packaging, printing, and food processing equipment
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Applications requiring high torque at low speed or multi-motor control
See our full range of 400 V variable frequency drives, covering all power ratings from 0.75 to 500 kW.
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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 (ND) | Motor Rated Power | kW | 2.2 |
| Rated Current | A | 5 | |
| G (HD) | Motor Rated Power | kW | 1.5 |
| Rated Current | A | 3,7 | |
| 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 | ||
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FAQ
Q1: What types of motors can the INVT GD350A 2.2 kW 400 V 3-phase control?
A1: The INVT GD350A 2.2 kW 400 V 3-phase supports both asynchronous (induction) and synchronous (permanent-magnet) motors. It provides V/F, sensorless vector (SVC), and full vector (VC) control modes for precise speed and torque management in industrial applications.
Q2: Can the GD350A 2.2 kW 400 V inverter be used for HVAC, pumps, or conveyors?
A2: Yes. The GD350A 2.2 kW 400 V 3-phase is ideal for HVAC systems, pumping stations, conveyor belts, compressors, and other industrial equipment requiring high torque at low speeds.
Q3: Does the INVT GD350A 2.2 kW VFD support braking functions?
A3: Absolutely. The GD350A 2.2 kW 400 V features dynamic braking, DC braking, magnetic braking, and short-circuit braking. Its integrated brake chopper ensures rapid and safe stops without external hardware.
Q4: Is the GD350A 2.2 kW suitable for industrial environments with electrical noise?
A4: Yes. The 2.2 kW 400 V GD350A integrates a C3 EMC filter and advanced digital noise filtering to provide reliable operation even in high-interference industrial environments.
Q5: What overload capacity does the GD350A 2.2 kW 400 V 3-phase VFD offer?
A5: The GD350A 2.2 kW 400 V supports 150 % overload for 1 minute, 180 % for 10 seconds, and 200 % for 1 second, ensuring dependable operation during short-term load peaks.
Q6: Can the GD350A 2.2 kW 400 V be monitored or controlled remotely?
A6: Yes. Using optional Wi-Fi or Bluetooth communication cards along with INVT Workshop software, you can configure and monitor the 2.2 kW 400 V VFD from a PC, smartphone, or cloud system.
Q7: How precise is speed and torque control on the GD350A 2.2 kW 400 V inverter?
A7: The GD350A 2.2 kW 400 V achieves speed accuracy of ±0.2 % (SVC) or ±0.02 % (VC) and torque accuracy of ±10 % (SVC) or ±5 % (VC), ensuring high-precision motor control.
Q8: Which communication interfaces are available on the GD350A 2.2 kW 400 V?
A8: Standard communication is via RS-485 with Modbus RTU. Optional expansion cards provide Ethernet, CANopen, and Modbus TCP connectivity for integration into industrial networks.
Q9: Is motor tuning complicated on the GD350A 2.2 kW 400 V VFD?
A9: No. The 2.2 kW 400 V GD350A features automatic motor tuning for both asynchronous and synchronous motors, simplifying setup and maximizing performance.
Q10: What type of display does the INVT GD350A 2.2 kW 400 V use?
A10: The VFD includes a multi-line LCD display with multi-language menus and directory-based navigation, enabling quick configuration and monitoring.








