Front view of INVT GD350A 3kW VFD – 3 Phase 400V Variable Frequency Drive
Front view of INVT GD350A 3kW VFD – 3 Phase 400V Variable Frequency Drive
Right side view of 3kW INVT GD350A 400V 3-phase VFD
Left side of INVT GD350A 3kW 3-phase inverter with compact design
Top view of INVT GD350A 3kW Variable Frequency Drive 3-phase 400V
Bottom view of INVT GD350A 3kW 400V 3-phase inverter showing terminal layout

INVT GD350A 3 kW VFD | 400 V 3-Phase Inverter (Dual-Rating)

CHF 355.00 excl. VAT, free Shipping

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  • Power: 3 kW (normal operation) / 2.2 kW (heavy load), 3-phase, 400 V

  • High-precision speed control: ±0.2% (SVC), ±0.02% (VC)

  • Starting torque: Up to 200% (VC), ideal for heavy-duty applications

  • Built-in brake chopper: Saves space and cost

  • EMC filter Class C3: Reduces interference, no additional modules required

  • Safety function STO: Safe Torque Off integrated (SIL-compliant)

  • Positioning accuracy: ±1 pulse – ideal for CNC applications

  • Seamless speed transitions: No current surges thanks to tracking function

  • Uninterrupted operation: Utilizes regenerative energy during power outages

  • Expandable: 3 slots for IO, communication, and feedback modules

  • Connections: USB, RS485, 4 digital inputs (DI), 2 analog inputs (AI), 2 digital outputs (DO), 2 analog outputs (AO), 2 relays, 2 high-speed digital inputs (HDI)

  • Wireless control: Via Bluetooth/WiFi cards with INVT app

  • Display: LCD panel with multi-line display and language selection

  • Over 30 protection functions: Overvoltage, overload, overheating, and more

  • Suitable for many industries: Textile, chemical fiber, packaging, mechanical engineering

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In stock

SKU: GD350A-2R2G/003P-4 Category: Tag:

Description

The INVT GD350A 3 kW (400 V, 3-phase, dual-rating) VFD is engineered for precise and reliable motor control in industrial applications. Featuring both standard (3 kW) and heavy-duty (2.2 kW) operation, it supports advanced vector control, high overload capacity, and extensive communication options. Ideal for automation, HVAC, pumps, conveyors, textiles, and packaging systems, the GD350A 3 kW ensures robust performance in demanding environments.

Precision Motor Control & Start-up Performance

The INVT GD350A 3 kW (400 V, 3-phase, dual-rating) provides highly accurate motor control for both asynchronous and synchronous motors:

  • Speed Control Accuracy: ±0.2% (SVC), ±0.02% (VC)

  • Starting Torque:

    • Asynchronous motor: 0.25 Hz / 150% (SVC)

    • Synchronous motor: 2.5 Hz / 150% (SVC), 0 Hz / 200% (VC)

  • Torque Control Accuracy: 10% (SVC), 5% (VC)

  • Motor Auto-Tuning: Supports both motor types for optimal efficiency and performance in industrial applications

Built-In Efficiency Enhancements

The GD350A 3 kW ensures energy-efficient operation with integrated components and smart features:

  • Braking Chopper: Manages excess energy during deceleration efficiently

  • Integrated EMC Filter (C3): Minimizes EMI without extra installation space

  • Rotating Speed Tracking: Smooth transitions between control modes without current shocks

  • Uninterrupted Operation: Maintains motor function during brief power interruptions

Comprehensive Protection & Reliability

The INVT GD350A 3 kW is equipped with over 30 fault protection functions, including:

  • Overcurrent, overvoltage, undervoltage, phase loss, overheating

  • Overload: 150% for 1 min, 180% for 10 s, 200% for 1 s

Advanced voltage and current control reduces faults and ensures stable performance under varying loads, making the GD350A ideal for demanding industrial environments.

Intelligent Features for Industrial Demands

Designed for modern industrial automation, the GD350A 3 kW provides:

  • STO (Safe Torque Off): Integrated safety compliance function

  • Exceptional Positioning Accuracy: ±1 pulse, suitable for CNC and automation

  • High Torque at Low Speeds: Reliable torque even at minimal motor speeds

  • Advanced DSP Technology: Precise signal control in noisy environments

  • Flexible Braking Methods: Supports DC, dynamic, magnetic, and short-circuit braking

Connectivity & Control Options

  • Flexible Frequency Setting: Digital, analog, pulse, multi-step speed, simple PLC, PID, and MODBUS

  • Versatile Interfaces:

    • 4 digital inputs

    • 2 high-speed pulse inputs

    • 2 analog inputs

    • 1 digital output

    • 1 high-speed pulse output

    • 2 analog outputs

    • 2 relay outputs

  • 2x HDI Ports: For precise AB pulse input or speed signals

  • USB Interface: Easy access to operational data and curve analysis

  • LCD Control Panel: Intuitive, multi-language display for streamlined configuration

Wireless & IoT Integration

  • Bluetooth & WiFi Ready: With optional communication cards, the 3kW VFD supports remote monitoring and adjustments via the INVT-Workshop App

  • Remote Range: Up to 30 meters (open space), enabling mobile configuration and status checks

Expandability & Customization

The INVT GD350A 3 kW (400 V, 3-phase, dual-rating) provides flexible expansion options to adapt precisely to your industrial application:

  • Three Expansion Slots for:

    • I/O extension cards

    • Feedback cards (encoder/resolver)

    • Communication modules (Modbus, Ethernet, CANopen, Profinet, EtherCAT)

    • Mini PLC modules

All expansion accessories are compact and easy to integrate, enabling full customization of the GD350A 3 kW for automation, HVAC, pumps, conveyors, and other industrial machinery.

Why Choose the INVT GD350A 3 kW ?

The GD350A 3 kW dual-rating delivers industrial-grade performance and versatility:

  • High torque control at low speeds for precise motor operation even under heavy loads

  • Energy-efficient operation optimized for pumps, fans, and conveyor systems

  • Comprehensive motor protection with integrated STO safety compliance

  • Smart connectivity via Modbus, Ethernet, Bluetooth, or WiFi for seamless system integration

  • Compact dual-rating design: 3 kW normal duty / 2.2 kW heavy-duty for versatile application use

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 3
Rated Current A 7
G (Heavy Duty) Motor Rated Power kW 2
Rated Current A 5
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 126 mm x 186 mm x 185 mm

 

 

 

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FAQ

1. Which motor types is the INVT GD350A 3 kW compatible with?
The INVT GD350A 3 kW (dual-rating) VFD works with both asynchronous (induction) and synchronous (permanent magnet) motors. Its auto-tuning function automatically adjusts parameters for optimal torque and speed performance.

2. Can I connect the GD350A 3 kW directly to a 400 V 3-phase network?
Yes. The GD350A 3 kW supports a 3-phase input of 380–480 V, making it suitable for standard European industrial power systems.

3. Is an external braking resistor required?
The GD350A 3 kW includes an integrated braking chopper. For frequent or heavy braking cycles, connecting an optional external resistor improves heat dissipation and braking efficiency.

4. Does this drive include a built-in PLC function?
Yes. The GD350A 3 kW features a basic PLC for simple automation tasks. Optional expansion cards allow advanced control functions.

5. Can the GD350A 3 kW be monitored or controlled wirelessly?
Yes. With optional Bluetooth or WiFi modules, the GD350A 3 kW can be configured and monitored remotely via the INVT Workshop software or mobile app.

6. What protection features does the GD350A 3 kW offer?
It provides over 30 protections, including overcurrent, overvoltage, undervoltage, overheating, phase loss, and overload protection, ensuring safe operation in demanding industrial environments.

7. How does the auto-tuning function work?
The GD350A 3 kW measures motor parameters automatically and adjusts its internal settings for both asynchronous and synchronous motors, delivering precise torque and speed control.

8. How can I export or back up data from the GD350A 3 kW?
The built-in USB port allows exporting operational logs and performance data directly to a USB drive for maintenance, diagnostics, or optimization.

9. Can the GD350A 3 kW be expanded with additional modules?
Yes. Three expansion slots support optional I/O modules, encoder/feedback cards, communication cards, or PLC extensions, enabling flexible industrial configurations.

10. Which communication protocols are supported?
The GD350A 3 kW includes RS485 with Modbus RTU as standard. Optional modules enable CANopen, Profibus, Profinet, and Ethernet-based protocols for integration into automation networks.

Related Documents

Documentation for INVT GD350A 3 kW (400 V, 3-Phase)

 

 

 

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