Danfoss 175G5571 VLT Soft Starter MCD 500 with 141 A current rating, integrated bypass and three-phase 380-690 V AC operation for industrial motor control applications.
The Danfoss 175G5571 is a reliable VLT Soft Starter MCD 500 designed to provide smooth and controlled starting and stopping of three-phase AC motors in industrial automation and machinery applications. As part of the advanced Danfoss MCD 500 soft starter series, it delivers intelligent motor control, reduced mechanical stress and dependable motor protection for demanding industrial environments.
The MCD 500 series uses advanced digital soft start technology with current feedback and Adaptive Acceleration Control (AAC) to optimise motor acceleration and stopping profiles. This helps reduce electrical inrush current, minimise mechanical shock and improve the service life of connected motors and machinery.
With a rated current of 21 A, a 380–690 V AC three-phase supply and an IP20 G1 enclosure design, the Danfoss 175G5571 is suitable for smaller industrial motors requiring reliable soft starting performance. The unit includes an integrated bypass contactor and supports 110 V AC and 220 V AC control voltage for flexible electrical panel integration.
Soft starters such as the Danfoss MCD 500 control motor voltage during startup, reducing high inrush currents and limiting mechanical stress on motors and connected equipment. This allows machinery to accelerate smoothly while improving operational reliability.
The Danfoss MCD 500 series provides advanced motor protection, flexible configuration and intelligent starting algorithms. These features make the 175G5571 suitable for pumps, fans, conveyors, compressors and industrial automation equipment requiring dependable motor control.
| Current | 21 A |
|---|---|
| Voltage | 110 V |
| Phase | Three Phase |
| IP Rating | IP00 |
| Series | VLT® Soft Starter MCD 500 |
| Part number | 175G5571 |
| Product type | Soft starter |
| Rated current | 141 A |
| AC53b rating | 3-30:570 |
| Input voltage | 380–690 V AC |
| Input phases | 3-phase |
| Frequency | 50 / 60 Hz |
| Control voltage | 24 VAC/VDC |
| Bypass | With integrated bypass contactor |
| Protection rating | IP00 |
| Frame size | G2 |
| Mounting type | Panel / cabinet mounting |
| Approximate net weight | 14.9 kg |
| EAN | 5710108878276 |
The Danfoss 175G5571 is a VLT Soft Starter MCD 500 used to control the starting and stopping of three-phase AC motors in industrial applications.
The Danfoss 175G5571 supports a rated current of 21 A.
The unit operates from a three-phase 380–690 V AC supply.
Yes. The Danfoss 175G5571 includes an integrated bypass contactor to improve efficiency during normal motor operation.
The Danfoss 175G5571 is designed for installation inside electrical control panels as part of industrial motor control systems.
Danfoss VLT Soft Starter MCD 500 units are trusted by engineers worldwide for reliable motor starting, intelligent protection and efficient operation in demanding industrial environments.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...