INVT Variable Frequency Drives (VFD) – Official Partner in Switzerland

Maximize your system efficiency with INVT Variable Frequency Drive solutions. From simple speed control for small pumps to high-precision management of heavy industrial drives, Longvista offers the right system for every requirement. Our VFDs not only reduce energy costs by up to 50% but also provide long-term protection against mechanical wear.

  • 230V Single-Phase: Ideal for workshops, fans, and small equipment using standard power grids.

  • 400V Three-Phase: High-performance solutions (0.75 kW to 500 kW) for industry and building automation.

  • Swiss Stock & Support: Fast delivery directly from our Caslano warehouse with expert technical guidance.

Select your voltage class below or consult our selection guide to find the right drive:

Selection Guide & Technical Specifications

Expert Advice: Selecting the right VFD ensures system longevity and energy compliance. Use this quick technical checklist to verify your requirements before ordering.

1. Voltage & Power Framework

Matching the VFD to your power source is the first step. Ensure the rated current of the VFD exceeds the motor’s full-load amps (FLA).

  • 230V Single-Phase Input: Optimized for small motors (up to 7.5 kW). Commonly used in Swiss residential or light commercial settings for fans and small pumps.

  • 400V Three-Phase Input: Industrial standard for motors from 0.75 kW up to 500 kW. Essential for heavy-duty machinery, large pumping stations, and production lines.

2. Motor Type & Control Compatibility

INVT drives are engineered to support a wide array of motor technologies found in modern Swiss industry:

  • Asynchronous (Induction) Motors: Fully supported by the GD20-EU and GD350A series.

  • Permanent Magnet (PM) & Synchronous Motors: Requires the advanced vector control found in the GD350A series for high-efficiency operation.

  • Feedback Systems: If your application requires precise positioning (Encoders), the GD350A provides the necessary expansion slots and high-speed response.

3. Critical Selection Checklist

Before finalizing your selection, verify these four environmental and technical factors:

  • Enclosure Rating: Ensure the IP rating (e.g., IP20) matches your installation environment (control cabinet vs. wash-down area).

  • Torque Profile: Distinguish between Variable Torque (fans/centrifugal pumps) and Constant Torque (conveyors/extruders) to ensure proper thermal sizing.

  • EMC Compliance: All our units support Swiss EMC standards. Use shielded cables to prevent interference with sensitive local electronics.

  • Certifications: Fully compliant with CE, IEC, and UL standards for seamless integration into Swiss industrial projects.

Industry & Application Engineering

Swiss Engineering Standard: A VFD is only as good as its configuration. We provide pre-configured solutions and technical advice for the following key industries in Switzerland.

1. HVAC & Building Automation

  • Optimal Series: GD20-EU (Standard) or GD350A (Complex systems).

  • Expert Setup: Utilize built-in PID control to maintain constant pressure or airflow. We recommend enabling “Sleep Mode” and soft-start ramps to satisfy Swiss energy-saving regulations (MuKEn) and reduce mechanical wear on ventilation units.

  • Key Benefit: Significant noise reduction in residential and office environments.

2. Pumping & Water Management

  • Optimal Series: GD20-EU (up to 110kW).

  • Expert Setup: For Swiss agriculture or municipal water systems, use our Master-Slave or Cascading configurations. Integrated pump-specific algorithms prevent “water hammer” and include dry-run protection to safeguard your infrastructure.

  • Key Benefit: Energy optimization for centrifugal loads, reducing electricity costs by up to 50%.

3. Conveyors & Material Handling

  • Optimal Series: GD20-EU (Standard) or GD350A (High Torque).

  • Expert Setup: Industrial conveyors require high starting torque. We configure the S-curve acceleration to prevent belt slippage and ensure smooth material handling. For logistics centers, we recommend the GD350A for precise stopping accuracy.

  • Key Benefit: Drastic reduction in mechanical maintenance and belt replacements.

4. Heavy Industry & Manufacturing

  • Optimal Series: GD350A (up to 500kW).

  • Expert Setup: Designed for mixers, extruders, and compressors requiring Constant Torque. These drives support Modbus, CANopen, or Ethernet/IP for seamless integration into Swiss PLC and SCADA environments.

  • Key Benefit: Total process stability even under rapidly changing or complex industrial loads.

Why Longvista & INVT?

Your Local Partner: Choosing Longvista means more than just buying a drive. It means gaining a technical partner dedicated to the uptime and efficiency of your Swiss operations.

1. Authorized INVT Partnership

As the official INVT partner in Switzerland, we provide factory-certified equipment. You receive the latest hardware versions with updated firmware, ensuring your installation meets current European and Swiss safety standards.

2. Local Support & Swiss Inventory

  • Ready for Dispatch: We maintain a comprehensive stock in Caslano, allowing for fast delivery across all cantons. No long international wait times or customs delays.

  • Technical Assistance: Our team provides direct support for sizing, parameter configuration, and troubleshooting. We speak your language and understand the technical requirements of the Swiss industrial landscape.

3. Performance Meet Compliance

  • Swiss Energy Efficiency: Our drives are designed to help you meet the stringent requirements of MuKEn and other cantonal energy regulations through advanced motor optimization.

  • Certified Quality: Every INVT drive we supply is fully compliant with CE, IEC, and EMC standards, ensuring reliable operation near sensitive electronic equipment.

4. Reliability & Warranty

We stand behind our products with full warranty support and a commitment to long-term availability. Whether you are a small workshop or a large-scale industrial facility, we ensure your motor control systems are a “set-and-forget” solution.

Frequently Asked Questions – INVT Variable Frequency Drives (VFDs)

Q1: Which INVT VFD series is best for Swiss industrial applications? A: For standard tasks like pumps and fans, the GD20-EU is our most popular choice due to its reliability and compact size. For complex machinery requiring high-precision vector control or encoder feedback, we recommend the GD350A series. Both are fully compliant with Swiss EMC and safety standards.

Q2: Do you provide technical support for parameter configuration in Switzerland? A: Yes. As the official INVT partner, Longvista provides technical guidance for initial setup and troubleshooting directly from our location in Caslano. We help you optimize ramp times, PID loops, and motor data to ensure your system runs efficiently.

Q3: How much energy can I save using a VFD in a 400V pumping system? A: By matching motor speed to actual demand, energy savings typically range from 30% to 50%. This is particularly important for complying with Swiss cantonal energy regulations (MuKEn), which prioritize high-efficiency motor control in building automation.

Q4: Are your INVT drives stocked locally for fast delivery? A: Yes, we maintain a comprehensive inventory of 230V and 400V drives in our Swiss warehouse. This ensures fast dispatch across all cantons, avoiding the customs delays and high shipping costs associated with ordering from abroad.

Q5: Can these VFDs be integrated into existing Swiss PLC or SCADA systems? A: Absolutely. INVT drives support standard industrial protocols including Modbus RTU, RS485, and optional cards for Profibus or Ethernet/IP. This allows seamless integration into most automation environments used in Swiss manufacturing.

Q6: What is the difference between 230V and 400V VFDs in your shop? A: 230V drives are single-phase input, ideal for small workshops, home applications, or light commercial use up to 7.5kW. 400V drives are three-phase industrial units designed for heavy-duty loads up to 500kW, such as large compressors and industrial conveyors.

 

Technical Documentation & Downloads

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