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Danfoss VLT Soft Starter MCD 500 MCD50331BT7G3X
Danfoss 134N9351 VLT Soft Starter MCD50331BT7G3X00CV2 soft starter for controlled starting and stopping of industrial three-phase motors with 331 A operational current.
Why Choose the Danfoss 134N9351 Frequency Converter?
The Danfoss 134N9351 is a premium VLT® AutomationDrive frequency converter designed to provide precise speed and torque control for three-phase AC motors in demanding industrial applications. As part of the proven Danfoss VLT® AutomationDrive series, it delivers exceptional reliability, high energy efficiency and flexible integration with modern industrial automation systems. The AutomationDrive platform is engineered for continuous-duty operation and supports both induction and permanent magnet motors.
Built for machine builders, OEM manufacturers and process industries, the VLT® AutomationDrive combines advanced vector motor control with intelligent diagnostics and flexible communication options. Its innovative thermal management and back-channel cooling system help maximise uptime while reducing maintenance requirements and operating costs.
The Danfoss 134N9351 is ideally suited to industrial applications requiring dependable variable speed motor control, including conveyors, pumps, compressors, fans, mixers and manufacturing equipment. Its compact panel-mounted construction allows easy integration into electrical control cabinets while providing dependable long-term performance.
Key Advantages
- Industrial AC variable frequency drive for demanding applications.
- Delivers accurate speed and torque control.
- Improves energy efficiency by matching motor speed to process demand.
- Reduces mechanical wear on motors and driven equipment.
- Compatible with numerous industrial communication protocols.
- Designed for reliable continuous industrial operation.
Key Features
- Danfoss VLT® AutomationDrive platform.
- Advanced vector motor control technology.
- Supports induction and permanent magnet motors.
- Integrated Safe Torque Off (STO).
- Automatic Motor Adaptation (AMA).
- Automatic Energy Optimisation (AEO).
- Expandable fieldbus communication options.
- Compact industrial panel-mounted design.
Advanced Motor Control for Industrial Automation
Variable frequency drives regulate motor speed by adjusting output voltage and frequency, allowing industrial machinery to operate more efficiently while reducing energy consumption and mechanical stress. The Danfoss VLT® AutomationDrive series is recognised globally for its robust construction, intelligent monitoring capabilities and suitability for demanding industrial environments.
With support for multiple industrial communication protocols and advanced automation features, the AutomationDrive integrates seamlessly into manufacturing plants, material handling systems and process industries to improve productivity and maximise equipment availability.
Typical Applications
- Industrial conveyors.
- Pumps and water treatment systems.
- Fans and ventilation 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 | 134N9351 | |
| Product type | Soft starter | |
| Rated current | 331 A | |
| Input voltage | 380–690 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 | 5710107953561 |
Frequently Asked Questions
What is the Danfoss 134N9351 used for?
The Danfoss 134N9351 provides variable speed control for three-phase AC motors used in industrial automation and process applications.
What type of drive is the Danfoss 134N9351?
It is an industrial AC variable frequency drive from the Danfoss VLT® AutomationDrive range.
Which motors is it compatible with?
The drive supports both induction motors and permanent magnet motors depending on the application.
Does it improve energy efficiency?
Yes. By matching motor speed to actual process requirements, it helps reduce energy consumption while maintaining optimum system performance.
Where is the Danfoss 134N9351 typically installed?
It is typically installed inside industrial electrical control panels for manufacturing, material handling and process automation applications.
Trusted by Industrial Engineers Worldwide
Danfoss VLT® AutomationDrive frequency converters are trusted worldwide for dependable motor control, outstanding efficiency and long-term reliability across demanding industrial applications.
