Front view of INVT GD20 45 kW 400V 3-phase variable frequency drive (VFD) with built-in keypad and display panel
Front view of INVT GD20 45 kW 400V 3-phase variable frequency drive (VFD) with built-in keypad and display panel

INVT GD20-EU 45 kW Frequency Inverter (400 V Three-Phase VFD)

CHF 1,875.00 excl. VAT, free Shipping

  • Rated Power: 45 kW (Three-phase 400V AC input)

  • Control Modes: V/f control & sensorless vector control (SVC)

  • Startup Torque: 150% at 0.5 Hz (SVC mode)

  • Speed Accuracy: ±0.2% (SVC mode)

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

  • Integrated STO (Safe Torque Off) for enhanced safety

  • Built-in Braking Unit for controlled deceleration

  • EMC Filter (C3) to reduce EMI and improve system stability

  • RS485 with Modbus RTU/ASCII for seamless communication

  • Flexible I/O: Analog/digital inputs & outputs + relay outputs

  • Auto-tuning & PID control for accurate, energy-efficient operation

  • Ideal for: HVAC, pumps, conveyors, compressors, and more

  • Certified: CE, TÜV SÜD

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SKU: INVT.GD20.015G.4.EU Category: Tag:

Description

The INVT GD20-EU 45 kW (400 V Three-Phase) frequency converter provides reliable and precise motor control for demanding industrial applications. Designed for V/f control and sensorless vector control (SVC), this GD20-EU 45 kW drive delivers high starting torque, precise speed regulation, and robust protection features. Ideal for pumps, HVAC systems, compressors, conveyors, and other industrial automation applications.

Key Specifications:

  • Motor Rated Power: 45 kW

  • Input Voltage: 400V ±10%, 3 Phase AC

  • Control Modes: V/f Control & Sensorless Vector Control (SVC)

  • Speed Accuracy: ±0.2% in SVC Mode

  • Starting Torque: 150% torque at 0.5 Hz (SVC Mode)

  • Overload Capacity:
    ➤ 150% for 1 minute
    ➤ 180% for 10 seconds
    ➤ 200% for 1 second

High-Precision Motor Control

The GD20-EU 45 kW 400V supports multi-step speed control (up to 16 levels) and dynamic load matching via adjustable V/f curves (linear, multi-dot, multi-power, and V/f separation). With static and dynamic auto-tuning, the GD20 ensures smooth operation across variable loads and complex industrial workflows.

Integrated Safety & Protection Features

  • Safe Torque Off (STO): Instant motor shutdown for safer maintenance and emergency handling

  • Built-in EMC C3 Filter: Reduces electromagnetic interference for reliable performance

  • Integrated Braking Unit: Smooth deceleration without external components

  • Comprehensive Protections: Guards against overvoltage, undervoltage, overcurrent, overheat, and overload conditions

Advanced I/O & Communication

The GD20-EU 45kW is designed with flexible connectivity and automation in mind:

  • RS485 Port: Supports Modbus RTU/ASCII protocols for PLC/SCADA integration

  • Analog Inputs: 2 channels (0–10V, -10–+10V, or 0–20mA)

  • Analog Output: 1 channel (0–10V or 0–20mA)

  • Digital Inputs: 4 standard inputs (max 1 kHz) + 1 high-speed input (up to 50 kHz)

  • Digital Output: 1 output + 2 programmable relay outputs

  • External LED Keypad: With parameter copy function for easy commissioning

Energy Efficiency & System Integration

Built with common DC bus compatibility, the GD20 allows energy sharing across multiple drives, minimizing energy loss and enhancing overall system efficiency. It also features a built-in energy monitoring function for real-time tracking of power consumption—ideal for facilities aiming to optimize energy use.

Applications of the 45kW GD20 VFD

The INVT GD20-EU 45kW inverter is widely used across various industrial applications, including:

  • Water & Wastewater Treatment

  • HVAC and Building Automation

  • Pumps (Centrifugal, Booster, Dosing)

  • Fans and Blowers

  • Conveyor Systems

  • Plastic, Printing, and Textile Machinery

  • Compressors and Machine Tools

  • Woodworking, Cable Manufacturing, and Packaging Lines

Why Choose the INVT GD20 45kW 3 Phase Inverter?

  • Powerful 45 kW motor control with precision speed regulation

  • High starting torque at low frequencies—perfect for heavy loads

  • Robust design for harsh environments

  • Flexible I/O for easy integration with automation systems

  • Built-in safety, braking, and filtering systems

  • Compact, space-saving design with global certifications

Certifications & Compliance

  • CE Certified

  • TÜV SÜD Tested

  • UL & cUL Listed

These certifications guarantee that the GD20-EU 45kW 400V meets international standards for safety, electromagnetic compatibility, and industrial performance.

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

Modbus RTU & ASCII
Control Methods

SVPWM, SVC (Sensorless Vector Control)
Dual Rating Capability

Single Rating
EMC Filter

Input Voltage

Motor Compatibility

Asynchronous Motors
Mounting Type

Wall and Flange Mounting
Safety Features

User Interface

LED Keypad

Specification

Motor Rated Power (kW) 45
Rated Current (A) 92
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, 180% for 10s; 200% for 1s
Output Frequency 0 … 590 Hz
Control Inputs Analog: 2 Inputs (AI2: 0 … 10 V / 0(4) … 20 mA; AI3: -10 … 10 V)
Digital: 5 programmable inputs, including 1 High-Speed Input (50 kHz)
Control Outputs Analog: 2 Outputs each 0 … 10V / 0 (4) … 20 mA
Digital: 1 potential-free digital output
2 freely programmable relays with changeover contacts
Interfaces RS485 on terminals (Modbus RTU & ASCII)
Brake Chopper Integrated
EMC Filter Integrated C3 filter, optional C2 filter (comply with IEC61800-3 C2, IEC61800-3 C3 requirements)
DC Reactor Integrated
Safety Functions 2-channel STO, SIL3, PL “e”
Protection Rating IP20
Operating Temperature -10°C … +50°C; performance reduction required if ambient temperature exceeds +40°C, fan cooling
Certifications CE, TÜV SÜD
Dimensions (mm) * Width x Height x Depth  / Weight 282 mm x 560 mm x 238 mm / 25 kg

 

 

 

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FAQ

1. What applications is the INVT GD20-EU 45 kW (400 V 3-phase) best suited for?
The GD20-EU 45 kW is designed for industrial motor control in HVAC systems, pumps (centrifugal, dosing, booster), compressors, conveyors, fans, packaging, textiles, plastics, water and wastewater treatment, and other automated processes that require precise speed and torque regulation.

2. What motor control methods does the GD20-EU 45 kW support?
It supports traditional V/f (Voltage/Frequency) control for standard applications and advanced Sensorless Vector Control (SVC) for high-precision motor speed and torque control without requiring an encoder.

3. What input voltage range does the GD20-EU 45 kW accept?
The 45 kW VFD operates on a three-phase 400 V AC supply with a voltage tolerance of ±10%, ensuring stable operation in European 400 V networks.

4. What overload protection is included in the GD20-EU 45 kW ?
The drive handles overloads up to 150% of rated current for 1 minute, 180% for 10 seconds, and 200% for 1 second, protecting motors during demanding startups or variable loads.

5. What safety features does the GD20-EU 45 kW provide?
It includes Safe Torque Off (STO) for emergency motor shutdown, an integrated braking unit for smooth deceleration, and protection against overvoltage, undervoltage, overcurrent, overheating, and overload.

6. Which communication protocols are supported by the GD20-EU 45 kW VFD?
The drive features an RS485 interface compatible with Modbus RTU and ASCII, enabling integration with PLCs, SCADA systems, and industrial automation networks.

7. Can the GD20-EU 45 kW VFD integrate with energy-saving systems?
Yes, it supports common DC bus technology for energy sharing among multiple drives and includes energy monitoring to track cumulative consumption.

8. What advantages does Sensorless Vector Control provide on this drive?
SVC allows high starting torque (150% at 0.5 Hz), precise speed accuracy (±0.2%), and smooth dynamic response without additional speed sensors, simplifying wiring and reducing cost.

9. Is the GD20-EU 45 kW VFD suitable for harsh industrial environments?
Yes, it includes robust protection and EMC C3 filters to minimize electromagnetic interference, ensuring reliable operation in challenging industrial conditions.

10. Which certifications does the GD20-EU 45 kW drive hold?
It is CE certified, TÜV SÜD tested, and UL & cUL listed, meeting international safety, performance, and EMC standards.

11. How easy is it to set up and configure the GD20-EU 45 kW ?
The drive features static and dynamic auto-tuning for quick motor commissioning, an external LED keypad with parameter copy functionality, and INVT Workshop PC software for configuration and maintenance.

12. Can the GD20-EU 45 kW handle multiple speed levels?
Yes, it supports up to 16-step speed control, allowing precise speed profiles for complex industrial processes.

13. What I/O options are available on the GD20-EU 45 kW ?
It provides 2 analog inputs, 1 analog output, 4 standard digital inputs, 1 high-speed input (up to 50 kHz), 1 digital output, and 2 programmable relay outputs for precise process control.

14. Is technical support and warranty available for the GD20-EU 45 kW VFD?
Yes, INVT offers comprehensive technical support and warranty through authorized distributors. Contact your local supplier for detailed terms.

Related Documents

Documentation for INVT GD20-EU 3-Phase 400V 45 kW:

 

 

 

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