Front view of 355 kW three-phase 400V INVT GD350A inverter
Front view of 355 kW three-phase 400V INVT GD350A inverter
Right side view of 355 kW 3 phase 400V INVT GD350A inverter
Left side view of 355 kW three-phase 400V INVT GD350A inverter
Top view of INVT GD350A 355 kW 3 phase 400V inverter
Bottom view of 355 kW three-phase 400V INVT GD350A inverter

INVT GD350A 355 kW VFD | 400 V 3-Phase Inverter (Dual-Rating)

CHF 9,495.00 excl. VAT, free Shipping

  • Dual Power Rating: 355 kW (Normal Duty) / 315 kW (Heavy Duty)

  • Three-phase 400V AC input for industrial motor control

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

  • High starting torque: up to 150% at 0.25 Hz (asynchronous), 200% at 0 Hz (synchronous)

  • Precise speed control accuracy: ±0.2% (SVC), ±0.02% (VC)

  • Automatic motor tuning for optimized performance and stability

  • Robust protection: Overvoltage, Overcurrent, Undervoltage, Phase Loss, Overheating

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

  • Multiple braking methods: dynamic, DC, magnetic, and short-circuit braking

  • Integrated Safe Torque Off (STO) for enhanced operator safety

  • IoT-ready with optional Bluetooth/WiFi and INVT-Workshop app support

  • Extensive I/O interfaces and expandable with optional modules

  • User-friendly multilingual LCD panel and programmable PLC (128kB memory)

  • Ideal for heavy machinery, pumps, fans, conveyors, HVAC, and industrial automation

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SKU: GD350A-315G/355P-4 Category: Tag:

Description

The INVT GD350A 355 kW (400 V 3-phase) inverter is a high-performance industrial drive engineered for demanding motor applications requiring precise torque control, reliability, and efficiency. With dual ratings—355 kW for Normal Duty (ND) and 315 kW for Heavy Duty (HD)—the GD350A 355 kW provides maximum flexibility for pumps, fans, conveyors, and heavy machinery in industrial settings.

Key Specifications

  • Power Rating: 355 kW (Normal Duty) / 315 kW (Heavy Duty)

  • Rated Voltage: 3-Phase 400V AC

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

  • Supported Motors: Asynchronous & Synchronous

Superior Low-Speed Torque & Precise Motor Control

The INVT GD350A 355 kW (400 V 3-phase) dual-rating inverter delivers exceptional torque performance at ultra-low speeds, making it ideal for heavy-duty industrial applications. Automatic motor tuning optimizes parameters for asynchronous and synchronous motors, improving speed accuracy, reducing skin-effect losses, and enhancing operational stability under fluctuating loads.

Key Performance:

  • High Starting Torque: 0.25 Hz / 150 % (asynchronous), 0 Hz / 200 % (synchronous)

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

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

Robust Stability & Comprehensive Safety Features

Engineered for harsh industrial environments, the GD350A 355 kW maintains voltage and current stability, safeguarding motors during acceleration, deceleration, and load fluctuations. It integrates Safe Torque Off (STO) functionality, complying with machinery safety standards for immediate emergency shutdown.

Protections & Capacity:

  • Overvoltage, overcurrent, undervoltage, phase loss, and overheating protection

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

  • Maintains motor function during brief power interruptions

Advanced Braking & Dynamic Load Management

The GD350A 355 kW supports multiple braking modes—including dynamic, DC, magnetic, and short-circuit braking—ensuring precise motor stops and safe deceleration in demanding industrial processes.

Extensive Connectivity & IoT-Ready Features

Seamless integration into complex automation systems is enabled via:

  • Built-in Modbus RTU and optional CANopen, Profibus DP, Profinet

  • Optional Bluetooth/WiFi modules for remote monitoring and control via the INVT-Workshop mobile app (up to 30 m range)

  • Multiple digital and analog I/O for flexible control

  • USB port for firmware updates, parameter backup, and data export

  • Expandable with optional PLC, I/O, communication, and feedback modules

User-Friendly Operation & Programmability

The GD350A 355 kW features a multilingual LCD panel for easy setup and diagnostics. Its 128 kB programmable PLC memory allows embedding of custom logic directly inside the drive, minimizing the need for external controllers.

Ideal Applications

The INVT GD350A 355 kW dual-rating is suitable for:

  • Heavy-duty pumps, large HVAC systems, and industrial fans

  • Conveyors, mixers, crushers, and machine tools

  • Packaging, textile, and food processing machinery

  • Renewable energy installations and high-demand motor control applications

Why Choose the INVT GD350A 355 kW ?

For engineers seeking a high-performance 355 kW inverter with dual-rating capability, precise motor control, advanced safety, and smart connectivity, the GD350A 355 kW (400 V 3-phase) offers unmatched reliability, flexibility, and efficiency. Its rugged, compact design makes it ideal for modern industrial automation and energy-efficient motor management.

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 355
Rated Current 650
G (Heavy Duty) Motor Rated Power 315
Rated Current 600
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 680 mm x 960 mm x 380 mm / 165kg

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FAQ

Q1: What are the power ratings of the INVT GD350A 355 kW (400 V 3-phase) inverter?
A: The GD350A 355 kW inverter offers dual power ratings:

  • 355 kW for Normal Duty (ND)

  • 315 kW for Heavy Duty (HD)
    This ensures flexibility for different industrial motor applications.

Q2: Which voltage and phase does it support?
A: The GD350A 355 kW operates on three-phase 400 V AC, compatible with industrial and commercial motor systems.

Q3: What types of motors are compatible?
A: Supports asynchronous (induction) and synchronous motors, with automatic motor tuning for optimal performance.

Q4: What control modes are available?
A: Includes advanced control modes such as:

  • Vector Control (VC)

  • Sensorless Vector Control (SVC)

  • I/F control

  • Constant Current Control
    These allow precise speed and torque management.

Q5: Can it handle low-speed torque applications?
A: Yes, the GD350A delivers high starting torque:

  • 150 % at 0.25 Hz for asynchronous motors

  • 200 % at 0 Hz for synchronous motors
    Ideal for heavy machinery, pumps, and conveyors.

Q6: Which safety features are integrated?
A: Built-in Safe Torque Off (STO) ensures immediate motor stop, plus protections for:

  • Overvoltage / Undervoltage

  • Overcurrent

  • Phase loss

  • Overheating

Q7: How reliable is it under overload conditions?
A: High overload capacity:

  • 150 % for 1 minute

  • 180 % for 10 seconds

  • 200 % for 1 second
    Ensures durability under demanding industrial conditions.

Q8: Does it support network connectivity and remote control?
A: Yes. Includes Modbus RTU, with optional CANopen, Profibus DP, Profinet modules, and Bluetooth/WiFi for control via the INVT-Workshop app.

Q9: Which industrial applications is it suitable for?
A: Ideal for:

  • Heavy-duty pumps, fans, and conveyors

  • HVAC systems

  • Packaging and textile machinery

  • Food processing and renewable energy systems

  • Other demanding industrial automation setups

Q10: How user-friendly is setup and operation?
A: Features:

  • Multilingual LCD control panel

  • Programmable PLC (128 kB memory)

  • USB data transfer

  • Expansion slots for I/O, feedback, and communication modules

Q11: How does it handle power interruptions?
A: Maintains motor operation during brief outages using stored energy, ensuring uninterrupted process continuity in critical applications.

Q12: What braking methods are available?
A: Supports multiple modes:

  • Dynamic braking

  • DC braking

  • Magnetic braking

  • Short-circuit braking
    Designed for safe and efficient motor deceleration.

Related Documents

Documentation for INVT GD350A 3-Phase 400V 355kW :

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