Front view of INVT GD350A 400kW 3-phase 400V VFD
Front view of INVT GD350A 400kW 3-phase 400V VFD
Right side of 400kW INVT GD350A VFD for 3-phase 400V applications
Left side view of INVT GD350A 400kW 3-phase VFD
Top view of INVT GD350A 400kW VFD with 400V input
Bottom view of INVT GD350A 400kW VFD showing terminal access

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

CHF 10,150.00 excl. VAT, free Shipping

  • Power Rating: 400 kW (Normal Duty) / 355 kW (Heavy Duty)

  • Voltage: 3-Phase 400V AC

  • Control Modes: Vector Control (VC), Sensorless VC (SVC), Advanced I/F, Constant Current

  • Motor Support: Asynchronous and Synchronous motors with auto-tuning

  • Starting Torque: Up to 0.25 Hz / 150% (asynchronous) and 0 Hz / 200% (synchronous)

  • Speed Accuracy: ±0.2% (SVC), ±0.02% (VC); Torque Accuracy: ±5–10%

  • Built-in Safety: Safe Torque Off (STO), over 30 integrated protection functions

  • Overload Capacity: 150% for 60 seconds, 180% for 10 seconds, 200% for 1 second

  • Braking Modes: Dynamic, DC, magnetic, and short-circuit braking

  • Connectivity: Built-in Modbus RTU; optional Profinet, Profibus DP, CANopen

  • Wireless Control: Optional Bluetooth or WiFi via INVT-Workshop app

  • Flexible I/Os: 4 digital inputs, 2 analog inputs, 2 pulse inputs, relay/analog/pulse outputs

  • User Interface: LCD panel with multi-language support

  • Built-in PLC: 128kB memory for custom automation logic

  • Expandable Design: 3 slots for I/O, feedback, and communication modules

  • Applications: Pumps, HVAC systems, conveyors, crushers, renewable energy, general automation

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SKU: GD350A-355G/400P-4 Category: Tag:

Description

The INVT GD350A 400 kW VFD is a high-performance 400 V 3-phase industrial inverter designed for demanding automation, HVAC, and heavy-load applications. With dual ratings—400 kW (Normal Duty) and 355 kW (Heavy Duty)— the GD350A 400 kW delivers precise motor control, robust torque, and reliable overload performance for modern industrial systems.

Key Specifications – INVT GD350A 400 kW

Power & Input

  • Power Rating: 400 kW (Normal Duty) / 355 kW (Heavy Duty)

  • Input Voltage: 3‑Phase 400 V AC

Control & Motor Compatibility

  • Control Modes: Vector Control (VC), Sensorless Vector Control (SVC), Advanced I/F Control, Constant Current Control

  • Supported Motors: Asynchronous and Synchronous motors

  • Auto Motor Tuning: Automatically identifies and optimizes motor parameters for stable, energy-efficient operation

Precision & Performance

  • Low-Speed Starting Torque: 0.25 Hz / 150 % (Asynchronous), 0 Hz / 200 % (Synchronous)

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

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

Protection & Reliability

  • Overvoltage, Undervoltage, Overcurrent, Overtemperature, Phase Loss protection

  • Overload Capability: 150 % for 60 s, 180 % for 10 s, 200 % for 1 s

  • Advanced deceleration and surge suppression control

  • Ride-through Function: Maintains motor operation during brief power interruptions

Braking & Safety

  • Braking Modes: Dynamic, DC, Magnetic, Short-circuit

  • Integrated STO (Safe Torque Off): Hardware-level emergency shutdown protection, compliant with machinery safety standards

Connectivity & I/O Options

  • Built-in Communication: Modbus RTU

  • Optional Protocols: CANopen, Profibus DP, Profinet

  • Wireless Access: Bluetooth or WiFi modules for configuration via INVT Workshop app (up to 30 m)

  • Flexible I/Os: 4 digital inputs, 2 high-speed pulse inputs, 2 analog inputs, relay outputs, analog outputs, pulse outputs

  • USB Interface: Fast parameter upload/download and diagnostics

Interface & Expandability

  • LCD Control Panel: Multilingual, intuitive interface for real-time monitoring

  • Built-in PLC: 128 kB programmable logic memory for custom automation tasks

  • Expansion Slots: 3 slots for additional I/O, feedback modules, or communication options

  • Control Options: PID control, analog/digital speed control, simple PLC logic, pulse control

Applications – GD350A 400 kW

  • HVAC systems & large air handling units

  • Water & wastewater treatment plants

  • Industrial pumps, blowers, compressors

  • Conveyors, crushers, mixers

  • Machine tools, packaging lines

  • Textile, plastic, and food processing

  • Renewable energy and grid-connected systems

  • General industrial automation & motor control

Why Choose the INVT GD350A 400 kW?

  • High torque at low speeds for heavy-load applications

  • Precise motor control and automatic tuning

  • Intelligent safety, protection, and overload features

  • Broad industrial compatibility

  • Expandable and user-friendly for advanced automation

  • Optimized for energy efficiency and maximum uptime

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 (Normal Duty) Motor Rated Power 400
Rated Current 720
G (Heavy Duty) Motor Rated Power 355
Rated Current 650
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 optional
EMC Filter Integrated IEC61800-3 C3; IEC61800-3 C1 & C2 optional
DC Reactor optional
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 / Weight 620 mm x 1700 mm x 580 mm / 407kg

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FAQ

1. What are the power ratings of the INVT GD350A 400 kW VFD?
The INVT GD350A 400 kW VFD supports dual power ratings:

  • 400 kW (Normal Duty) for standard industrial applications

  • 355 kW (Heavy Duty) for high-torque, demanding operations

2. What input voltage does the INVT GD350A 400 kW require?
The INVT GD350A 400 kW VFD operates on three-phase 400 V AC, suitable for standard European industrial power systems.

3. Can the GD350A 400 kW control both asynchronous and synchronous motors?
Yes. It can control asynchronous (AC induction) and synchronous (PM) motors with built-in auto-tuning to optimize efficiency and performance.

4. What starting torque can I expect from the GD350A 400 kW ?

  • Asynchronous motors: 150 % torque at 0.25 Hz

  • Synchronous motors: 200 % torque at 0 Hz
    This ensures excellent low-speed torque for applications like conveyors, crushers, and heavy machinery.

5. Does the GD350A 400 kW support vector control?
Yes. It supports both Sensorless Vector Control (SVC) and Vector Control (VC) modes for precise speed and torque regulation.

6. What are the overload capabilities of the GD350A 400 kW ?

  • 150 % for 60 seconds

  • 180 % for 10 seconds

  • 200 % for 1 second
    These ratings ensure stable operation under sudden load changes or heavy mechanical demands.

7. What safety features does the GD350A 400 kW include?
It includes over 30 protection functions (overvoltage, undervoltage, overcurrent, overheating, etc.) and a hardware-based Safe Torque Off (STO) function compliant with industrial safety standards.

8. Which communication options are available with the GD350A 400 kW ?

  • Built-in: Modbus RTU

  • Optional: CANopen, Profibus DP, Profinet

  • Wireless modules: Bluetooth or WiFi for configuration via the INVT-Workshop app (up to 30 m)

9. Can the GD350A 400 kW be expanded or customized?
Yes. It features three expansion slots for optional I/O, feedback, and communication cards, plus an integrated 128 kB PLC for custom logic programming.

10. What applications are suitable for the INVT GD350A 400 kW ?

  • HVAC systems and air handling units

  • Water and wastewater pumps

  • Conveyors, crushers, mixers

  • Plastic, textile, and food processing machinery

  • Renewable energy systems

  • Industrial automation requiring robust and reliable motor control

11. How easy is it to configure and monitor the GD350A 400 kW?
It includes a user-friendly LCD display with multilingual support, USB connectivity, and optional Ethernet/UDP/MQTT cloud access, enabling convenient monitoring and configuration.

12. Why choose the INVT GD350A 400 kW ?
It combines advanced motor control, robust protection, customizable I/O, and industrial-grade performance, making it one of the most flexible and reliable 400 kW drives for industrial applications.

Related Documents

Documentation for INVT GD350A 3-Phase 400V 400kW :

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