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Danfoss VLT Soft Starter MCD 500 MCD50021BT5G1X
Danfoss 175G5500 VLT Soft Starter MCD50021BT5G1X20CV1 soft starter for controlled starting and stopping of industrial three-phase motors with 21 A operational current.
Why Choose the Danfoss 175G5500 Soft Starter?
The Danfoss 175G5500, also identified as the MCD5-0021B-T5-G1X-20-CV1, is a compact VLT® Soft Starter MCD 500 engineered to provide intelligent motor starting, stopping and protection for three-phase induction motors. As part of the advanced Danfoss MCD 500 series, it combines adaptive acceleration control, integrated motor protection and comprehensive diagnostics to improve equipment reliability while reducing electrical and mechanical stress.
Designed for industrial automation and OEM machinery, the MCD 500 series significantly reduces motor inrush current and minimises mechanical shock to motors, couplings, gearboxes and driven equipment. Its integrated bypass technology and programmable motor protection help maximise system uptime while lowering maintenance costs.
With a 21 A rated current, three-phase 200-525 V AC supply and a 24 V AC/DC control supply, the Danfoss 175G5500 is ideal for pumps, conveyors, compressors, fans and other industrial machinery requiring dependable soft starting performance.
Key Advantages
- Compact industrial soft starter for three-phase motors.
- 21 A rated operational current.
- Three-phase 200-525 V AC supply.
- 24 V AC/DC control supply.
- Integrated bypass reduces heat generation and improves efficiency.
- Advanced motor protection and diagnostics.
Key Features
- Danfoss VLT® Soft Starter MCD 500 series.
- MCD5-0021B-T5-G1X-20-CV1 model.
- 21 A rated current.
- 200-525 V AC (T5) operating voltage.
- 24 V AC/DC (CV1) control supply.
- Integrated bypass contactor.
- Adaptive acceleration and deceleration control.
- Graphical keypad with advanced diagnostics.
Advanced Soft Starting for Industrial Motors
Soft starters gradually increase the voltage supplied to a motor during start-up, reducing current surges and limiting mechanical shock. This improves equipment reliability, extends service life and lowers maintenance costs while improving overall system performance. The Danfoss VLT® Soft Starter MCD 500 range is widely recognised for intelligent motor protection and dependable industrial operation.
With programmable control functions, integrated bypass technology and comprehensive diagnostics, the MCD 500 series integrates seamlessly into industrial automation systems across manufacturing, utilities and process industries.
Typical Applications
- Industrial conveyors.
- Pumps and water treatment systems.
- Compressors.
- Fans and ventilation equipment.
- Packaging machinery.
- Manufacturing and OEM automation systems.
Technical Specifications
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| Current | 21 A | |
|---|---|---|
| Voltage | 24 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Series | VLT® Soft Starter MCD 500 | |
| Part number | 175G5500 | |
| Product type | Soft starter | |
| Rated current | 21 A | |
| Duty rating | AC53b 3-30:330 | |
| Input voltage | 200–525 V AC | |
| Input phases | 3-phase | |
| Control voltage | 24 VAC/VDC | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | Panel mounting | |
| Frame size | G1 / Frame size 1 | |
| Gross weight | approx. 4.2 kg | |
| Net weight | approx. 4.2 kg | |
| EAN | 5710107567515 |
Frequently Asked Questions
What is the Danfoss 175G5500 used for?
The Danfoss 175G5500 provides controlled starting and stopping of three-phase induction motors while reducing electrical inrush current and mechanical stress.
What is the rated current of this soft starter?
The Danfoss 175G5500 has a 21 A rated operational current.
What supply voltage does it require?
The unit operates from a three-phase 200-525 V AC supply with a 24 V AC/DC control supply.
Does it include an integrated bypass?
Yes. The MCD5-0021B-T5-G1X-20-CV1 includes an integrated bypass contactor that improves operating efficiency while reducing heat generation.
Where is the Danfoss 175G5500 typically installed?
It is typically installed inside industrial electrical control panels for motor control and automation applications.
Trusted by Industrial Engineers Worldwide
Danfoss VLT® Soft Starter MCD 500 units are trusted worldwide for delivering intelligent motor protection, reliable soft starting and dependable long-term performance across demanding industrial applications.
