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Danfoss VLT Soft Starter MCD 500 MCD50331BT5G3X
Danfoss 134N9349 VLT Soft Starter MCD50331BT5G3X00CV2 soft starter for controlled starting and stopping of industrial three-phase motors with 331 A operational current.
Why Choose the Danfoss 134N9349 Frequency Converter?
The Danfoss 134N9349 is a high-performance VLT® AutomationDrive frequency converter designed to deliver accurate speed and torque control for three-phase AC motors in demanding industrial environments. As part of the advanced Danfoss VLT® AutomationDrive series, it combines exceptional reliability, energy efficiency and flexible integration into modern automation systems. The AutomationDrive platform is engineered for continuous industrial operation and supports both induction and permanent magnet motors.
Built for OEM machine builders and industrial process applications, the VLT® AutomationDrive offers intelligent motor control, integrated diagnostics and a modular architecture that simplifies commissioning and maintenance. Its advanced thermal management and back-channel cooling technology help maximise uptime while reducing operating costs.
The Danfoss 134N9349 is ideally suited for variable speed control of pumps, fans, conveyors, compressors, mixers and production machinery. Its compact panel-mounted design enables straightforward installation inside industrial electrical control cabinets while providing dependable long-term performance.
Key Advantages
- Industrial AC variable frequency drive for demanding applications.
- Provides precise speed and torque control for AC motors.
- Improves energy efficiency by matching motor speed to process demand.
- Reduces mechanical wear and extends equipment service life.
- Supports multiple industrial communication protocols.
- Designed for reliable continuous-duty operation.
Key Features
- Danfoss VLT® AutomationDrive series.
- Advanced vector motor control.
- Compatible with induction and permanent magnet motors.
- Integrated Safe Torque Off (STO) functionality.
- Automatic Motor Adaptation (AMA).
- Automatic Energy Optimisation (AEO).
- Modular fieldbus and communication options.
- Compact industrial panel-mounted construction.
Reliable Variable Speed Control for Industrial Machinery
Variable frequency drives regulate motor speed by adjusting output voltage and frequency, allowing machinery to operate more efficiently while improving process accuracy and reducing energy consumption. The Danfoss VLT® AutomationDrive series is recognised worldwide for its robust construction, intelligent diagnostics and suitability for demanding industrial applications.
With flexible communication capabilities and advanced monitoring functions, the AutomationDrive integrates seamlessly into modern manufacturing facilities, material handling systems and process industries, helping improve productivity and minimise downtime.
Typical Applications
- Industrial conveyors.
- Pumps and water treatment systems.
- Fans and HVAC equipment.
- Compressors.
- Mixers and processing machinery.
- Manufacturing and OEM automation systems.
Technical Specifications
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| Current | 331 A | |
|---|---|---|
| Voltage | 110 V | |
| Phase | Three Phase | |
| IP Rating | IP00 | |
| Series | VLT® Soft Starter MCD 500 | |
| Part number | 134N9349 | |
| Product type | Soft starter | |
| Rated current | 331 A | |
| Duty rating | AC53a 3-30:50-6 | |
| Input voltage | 200–525 V AC | |
| Input phases | 3-phase | |
| Control voltage | 110 VAC / 220 VAC | |
| Protection rating | IP00 | |
| Mounting type | Panel mounting | |
| Frame size | G3 / Frame 3 | |
| Gross weight | approx. 32 kg | |
| Net weight | approx. 30.2 kg | |
| EAN | 5710107953547 |
Frequently Asked Questions
What is the Danfoss 134N9349 used for?
The Danfoss 134N9349 provides variable speed control for three-phase AC motors used in industrial automation and process applications.
What type of drive is the Danfoss 134N9349?
It is an industrial AC variable frequency drive from the Danfoss VLT® AutomationDrive range.
Which motors can it control?
The drive is compatible with both standard induction motors and permanent magnet motors, depending on the application.
Does it improve energy efficiency?
Yes. By matching motor speed to process requirements, the drive helps reduce electrical energy consumption while maintaining optimum performance.
Where is the Danfoss 134N9349 typically installed?
It is commonly installed inside industrial electrical control panels serving manufacturing, process control and automation systems.
Trusted by Industrial Engineers Worldwide
Danfoss VLT® AutomationDrive frequency converters are trusted worldwide for dependable motor control, outstanding energy efficiency and long-term reliability across demanding industrial applications.
