Front view of 7.5 kW, 400V three-phase inverter INVT GD20 with compact industrial design
Front view of 7.5 kW, 400V three-phase inverter INVT GD20 with compact industrial design

INVT GD20-EU 7.5 kW Frequency Inverter (400 V Three-Phase VFD)

CHF 465.00 excl. VAT, free Shipping

INVT GD20 7.5kW VFD Inverter | 3-Phase 400V Frequency Converter – powerful and reliable industrial inverter for precise motor speed control. Ideal for pumps, fans, conveyors, and OEM machinery.

  • Powerful 7.5kW three-phase 400V inverter for industrial motor control

  • Certified Safe Torque Off (STO) function for enhanced safety (SIL2/SIL3)

  • High starting torque: 150% at 0.5 Hz for heavy-duty applications

  • Precise speed control with ±0.2% accuracy using sensorless vector control

  • Built-in braking unit and multiple braking modes (DC, flux, dynamic braking)

  • Flexible communication: Modbus RTU & ASCII, analog/digital inputs and outputs

  • Integrated PID control for pressure, flow, and temperature regulation

  • Power-fail ride-through ensures continuous motor operation during outages

  • Energy consumption monitoring without extra meters

  • Suitable for water treatment, printing, packaging, HVAC, and OEM machinery

  • CE, UL, cUL, and TÜV SÜD certified for international standards compliance

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SKU: GD20-7R5G-4-EU Category: Tag:

Description

The INVT GD20-EU 7.5 kW 400 V three-phase model is a high-performance inverter designed for precise motor control in OEM and industrial environments. With sensorless vector control, built-in STO safety functions, and flexible I/O connectivity, the GD20-EU 7.5 kW is ideal for applications such as water treatment, packaging, HVAC systems, and printing machinery. Its compact design allows easy installation in tight panels, ensuring reliability even in demanding industrial conditions.

Key Features

  • Power Rating: 7.5kW

  • Input Voltage: 3-phase 400V AC

  • Starting Torque: Up to 150% at 0.5Hz – ideal for heavy-duty loads

  • Control Methods: V/F and Sensorless Vector Control (SVC) with ±0.2% speed control accuracy

  • Built-in Braking Unit for enhanced deceleration performance

  • Certified Safe Torque Off (STO) – SIL2/SIL3 compliant, ensuring reliable protection for safety-critical processes

 User-Friendly Interface and Operation

  • LED Keypad with data copy support

  • Optional External Keypad simplifies parameter duplication and configuration

  • Automatic Run Timer – allows scheduled changes to frequency and direction for flexible automation

Communication and I/O Connectivity

  • Supports Modbus RTU & ASCII protocols via RS485

  • 2 Analog Inputs: ±10V / 4–20mA

  • 4 Digital Inputs (programmable) and up to 3 Digital Outputs

  • 2 Analog Outputs, 1 High-Speed Pulse Input (50kHz)

The INVT GD20-EU 7.5 kW integrates seamlessly into PLC systems and SCADA networks, offering real-time feedback and stable motor control.

Process Control and Efficiency

  • Integrated PID Control – perfect for pressure, flow, and temperature regulation

  • Energy Monitoring – view accumulated power consumption directly on the VFD screen

  • Multiple Braking Options: DC braking, flux braking, and dynamic braking for rapid stops

Reliable and Durable Design

  • Power-Fail Ride-Through – keeps the motor running during momentary power outages

  • Comprehensive Fault Protection: safeguards against overcurrent, overvoltage, undervoltage, overheating, and overload

  • Error Memory – stores fault data for easy troubleshooting

Wide Application Range

The INVT GD20-EU 7.5 kW (400 V trifase) is designed for versatile industrial applications where precise motor control and reliability are critical:

  • Water treatment plants: Pumps and agitators requiring smooth speed regulation.

  • Winding and unwinding equipment: High-torque starts and accurate speed control for spools.

  • Printing and packaging systems: Flexible operation with consistent performance for automated lines.

  • Paper and textile machinery: Smooth motor operation for high-precision production.

  • Plastic processing machines: Reliable motor control for extrusion, injection, and molding processes.

  • HVAC systems, cable machinery, and OEM integration: Compact design and versatile mounting for seamless integration in control panels and OEM equipment.

Certifications

This Inverter is tested and certified for international use:

  •  CE

  •  UL & cUL

  •  TÜV SÜD

 Discover more models from the INVT GD20-EU series of 400 V VFDs for different power ratings and applications.

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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) 7,5
Rated Current (A) 18,5
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, 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 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 –
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, UL, and cUL
Dimensions (mm) * Width x Height x Depth 170 mm x 320 mm x 196,3 mm

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FAQ

Q1: In which applications is the INVT GD20-EU 7.5 kW (400 V trifase) suitable?
A: The GD20-EU 7.5 kW (400 V trifase) is designed for industrial and OEM applications requiring precise motor control, including pumps, fans, conveyors, HVAC systems, printing and packaging machinery, and textile equipment.

Q2: Does the GD20-EU 7.5 kW have integrated safety features?
A: Yes, the INVT GD20-EU 7.5 kW includes Safe Torque Off (STO) certified for SIL2/SIL3, as well as protections against overcurrent, overvoltage, undervoltage, overheating, and overload, ensuring safe operation in demanding environments.

Q3: What supply voltage and phase does this model support?
A: The GD20-EU 7.5 kW supports a three-phase 400 V AC supply, compatible with standard industrial power networks.

Q4: Can the inverter maintain motor operation during short power interruptions?
A: Yes, the INVT GD20-EU 7.5 kW supports power-fail ride-through, allowing the motor to continue running during brief outages and minimizing downtime.

Q5: How can I configure or control the GD20-EU 7.5 kW?
A: It can be configured via the built-in LED keypad, an optional external keypad, or connected to a PC. The model supports Modbus RTU & ASCII protocols for integration with PLC and SCADA systems.

Q6: Does it provide precise speed and torque control?
A: Absolutely. The GD20-EU 7.5 kW uses sensorless vector control with ±0.2% speed accuracy and can deliver starting torque up to 150% at 0.5 Hz, making it ideal for demanding motor control tasks.

Q7: Can I monitor energy consumption?
A: Yes, the GD20-EU 7.5 kW displays accumulated power consumption directly on its interface, eliminating the need for external meters.

Q8: What certifications does the INVT GD20-EU 7.5 kW have?
A: The model is CE, UL/cUL, and TÜV SÜD certified, ensuring compliance with international safety and quality standards.

Related Documents

Documentation for INVT GD20-EU 3-Phase 400V 7.5 kW:

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