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Danfoss VLT Soft Starter MCD 500 MCD50021BT5G1X
Danfoss 175G5525 VLT Soft Starter MCD 500 with 21 A current rating, internal bypass and three-phase 200-525 V AC operation for industrial motor starting applications.
Why Choose the Danfoss 175G5525 Soft Starter?
The Danfoss 175G5525 is a compact VLT® Soft Starter MCD 500 designed to provide smooth, controlled starting and stopping of three-phase induction motors in industrial machinery and automation systems. Identified by the type code MCD5-0021B-T5-G1X-20-CV2, this model features a 110-120 V AC / 220-240 V AC control supply, making it ideal for applications requiring an alternative control voltage configuration.
The MCD 500 series helps reduce electrical inrush current and mechanical stress during motor acceleration and deceleration. Adaptive Acceleration Control automatically optimises the motor starting profile, extending the life of motors, gearboxes, pumps, conveyors and driven equipment while reducing maintenance requirements.
With a 21 A rated operational current, a three-phase 200-525 V AC mains supply and a 110-120 V AC or 220-240 V AC control supply, the Danfoss 175G5525 is ideally suited to pumps, fans, compressors, conveyors and general industrial machinery. Its integrated bypass contactor improves efficiency by reducing heat generation once the motor reaches full operating speed.
Key Advantages
- Industrial digital soft starter for three-phase induction motors.
- 21 A rated operational current.
- Three-phase 200-525 V AC mains voltage.
- 110-120 V AC / 220-240 V AC control supply (CV2).
- Integrated bypass contactor for improved efficiency.
- Adaptive Acceleration Control for smooth motor starting and stopping.
Key Features
- Danfoss VLT® Soft Starter MCD 500 series.
- 21 A rated operational current.
- Type code: MCD5-0021B-T5-G1X-20-CV2.
- Three-phase 200-525 V AC mains supply.
- 110-120 V AC / 220-240 V AC control supply.
- Integrated internal bypass contactor.
- Adaptive Acceleration Control.
- Graphical keypad for simple programming.
- Integrated motor thermal model.
- Optional industrial communication modules.
Reliable Motor Control for Industrial Machinery
The Danfoss MCD 500 gradually increases and decreases motor voltage during starting and stopping, reducing inrush current, torque shock and mechanical wear. This improves equipment reliability while helping extend the service life of motors and connected machinery.
Integrated protection functions monitor overload, phase imbalance, phase loss, excessive start time and motor temperature, helping maximise uptime across industrial applications.
Typical Applications
- Industrial pumps.
- Fans and ventilation systems.
- Compressors.
- Conveyor systems.
- Packaging machinery.
- Manufacturing equipment.
- Water and wastewater treatment systems.
Technical Specifications
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| Current | 21 A | |
|---|---|---|
| Voltage | 110 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Series | VLT® Soft Starter MCD 500 | |
| Part number | 175G5525 | |
| Product type | Soft starter | |
| Rated current | 21 A | |
| Input voltage | 200–525 V AC | |
| Input phases | 3-phase | |
| Frequency | 50 / 60 Hz | |
| Control voltage | 110 / 220 V AC | |
| Bypass | Internal bypass contactor | |
| Protection rating | IP20 | |
| Frame size | G1 | |
| Mounting type | Panel / cabinet mounting | |
| Weight | approx. 4.2 kg | |
| EAN | 5710107567522 |
Frequently Asked Questions
What is the Danfoss 175G5525 used for?
The Danfoss 175G5525 provides controlled starting and stopping of three-phase induction motors while reducing electrical inrush current and mechanical stress.
What is the current rating of the Danfoss 175G5525?
The unit has a 21 A rated operational current.
What control voltage does the Danfoss 175G5525 require?
This CV2 version operates with a 110-120 V AC or 220-240 V AC control supply.
Does the Danfoss 175G5525 include an integrated bypass contactor?
Yes. It includes an integrated bypass contactor that reduces heat generation and improves operating efficiency.
Where is the Danfoss 175G5525 typically installed?
It is designed for installation inside industrial electrical control panels serving pumps, fans, conveyors, compressors and other motor-driven equipment.
Trusted by Industrial Engineers Worldwide
Danfoss VLT® Soft Starter MCD 500 units are trusted worldwide by automation engineers and machine builders for delivering reliable motor protection, efficient starting performance and dependable operation.
