Danfoss VLT Soft Starter MCD 500 MCD50021BT7G1X

Why Choose the Danfoss 175G5548 VLT Soft Starter MCD 500?

The Danfoss 175G5548 is a compact and reliable VLT Soft Starter MCD 500 designed to provide smooth acceleration and controlled stopping of three-phase AC motors in industrial applications. As part of the proven Danfoss MCD 500 soft starter series, it provides intelligent motor starting, reduced mechanical stress and dependable motor protection for industrial automation systems.

The MCD 500 range uses advanced digital soft start technology with current feedback and Adaptive Acceleration Control (AAC) to automatically optimise motor starting and stopping profiles. This helps reduce electrical stress, minimise mechanical shock and improve equipment reliability across a wide range of industrial applications.

With a rated current of 21 A, a 380–690 V AC three-phase supply and an IP20 G1 enclosure design, the Danfoss 175G5548 is suitable for smaller industrial motors requiring controlled starting performance. The unit includes an integrated bypass contactor and supports 24 V AC/V DC control voltage for flexible machine integration.

Key Advantages

• Compact soft starter solution for industrial motor applications.
• 21 A rated current capacity for smaller three-phase motors.
• 380–690 V AC three-phase supply for flexible industrial installation.
• 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: MCD50021BT7G1X20CV1.
• 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.
• 24 V AC/V DC 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 connected equipment. This allows motors to accelerate smoothly while improving system reliability and reducing maintenance requirements.

The Danfoss MCD 500 series provides advanced motor protection, flexible programming and intelligent starting algorithms. These features make the 175G5548 suitable for pumps, fans, conveyors, compressors and general industrial machinery requiring dependable motor control.

Typical Applications

• Industrial pumps and water systems.
• Fans and ventilation equipment.
• Small conveyors and material handling systems.
• Compressors and processing machinery.
• Packaging and production equipment.
• OEM automation systems.