Danfoss VLT Soft Starter MCD 500 MCD50021BT7G1X

Why Choose the Danfoss 175G5571 VLT Soft Starter MCD 500?

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.

Key Advantages

• Compact soft starter solution for industrial motor applications.
• 21 A rated current capacity for smaller motor systems.
• 380–690 V AC three-phase supply for industrial installations.
• Integrated bypass contactor improves operating efficiency.
• Adaptive Acceleration Control optimises motor starting performance.
• Built-in motor protection functions improve system reliability.

Key Features

• Danfoss VLT Soft Starter MCD 500 series.
• Model code: MCD50021BT7G1X20CV2.
• 21 A rated current.
• 380–690 V AC mains voltage range.
• Three-phase motor control.
• AC53B 3-30:330 utilisation rating.
• Integrated bypass contactor.
• Adaptive Acceleration Control (AAC).
• IP20 enclosure design for panel installation.
• 110 V AC and 220 V AC control voltage.

Reliable Motor Starting for Industrial Applications

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.

Typical Applications

• Industrial pumps and water systems.
• Fans and ventilation equipment.
• Conveyors and material handling systems.
• Compressors and process machinery.
• Packaging and production equipment.
• OEM automation systems and motor control panels.