# FC21 Frequency Inverter

DDY Supply offers industrial electrical components for global distributors, EPC contractors, system integrators, and industrial buyers. We specialize in providing high-quality solutions designed for demanding operational environments.

The FC21 Frequency Inverter from Danfoss is engineered for precise motor speed control across a wide spectrum of industrial applications. This variable frequency drive (VFD) is integral to modern automation and electrical systems, enabling optimized energy consumption and enhanced operational efficiency in machinery, control panels, and complex engineering projects.

**Key Features**

-   **Precise Motor Speed Regulation:** Delivers accurate and stable control of motor speeds, crucial for process optimization and machinery performance.
-   **Integrated Design Options:** Features a robust construction suitable for integration into various control panel and system architectures.
-   **Energy Efficiency Optimization:** Facilitates significant energy savings by matching motor output to actual load requirements, reducing operational costs.
-   **Broad Compatibility:** Designed for seamless integration with common automation platforms and electrical protection systems.
-   **Simplified Installation and Commissioning:** Offers straightforward mounting and setup procedures, reducing project timelines and labor requirements for integration.

**Technical Specifications**

A clear specification table will be generated based on available product data. For the FC21 Frequency Inverter, focus will be placed on parameters relevant to variable frequency drives and automation control.

Specification

Details

Brand

Danfoss

Model

FC21

Product Type

Frequency Inverter (VFD)

Main Function

Variable Motor Speed Control

Application Focus

Industrial Automation, Machinery Control

Communication Protocols

(Information not provided)

PLC Compatibility

(Information not provided)

Input / Output Type

(Information not provided)

Mounting Type

(Information not provided)

Operating Temperature

(Information not provided)

Standards

(Information not provided)

**Applications**

The Danfoss FC21 Frequency Inverter is deployed in critical industrial settings where precise motor control and energy management are paramount. Its capabilities support advanced industrial automation, complex PLC control systems, and the optimization of machinery in manufacturing and production environments. It is also utilized in the design and integration of control panels for various industrial equipment and commercial building systems, enhancing operational efficiency and reducing energy expenditure.

**Frequently Asked Questions**

**Q: Where can I purchase Danfoss FC21 Frequency Inverters from China?**  
A: DDY Supply provides frequency inverters and other industrial electrical components for global distributors, contractors, system integrators, and engineering projects.

**Q: What industrial applications is the FC21 Frequency Inverter suitable for?**  
A: The FC21 Frequency Inverter is commonly used in industrial automation, machine control, and variable speed drive applications within manufacturing and processing facilities.

**Q: Can DDY Supply supply industrial electrical components for large-scale projects?**  
A: Yes, DDY Supply supplies industrial electrical components for international projects, supporting procurement needs for global distributors and contractors.

## Details

- **Price:** 99.78 USD - 265.79 USD
- **Vendor:** DDY GROUP CO.,LTD.
- **Tags:** Danfoss, Frequency Converter

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| FC-021PK75T4E20HXXXCXXXSXXX | 141.65 USD | In stock |
| FC-021PK75S2E20HXXXCXXXSXXX | 111.91 USD | In stock |
| FC-021PK37T4E20HXXXCXXXSXXX | 138.13 USD | In stock |
| FC-021P1K5T4S20HXXXCXXXSXXX | 153.58 USD | In stock |
| FC-021P2K2T4E20HXBXCXXXSXXX | 178.43 USD | In stock |
| FC-021PK37S2E20HXXXCXXXSXXX | 99.78 USD | In stock |
| FC-021P1K5S2E20HXBXCXXXSXXX | 123.65 USD | In stock |
| FC-021PK18S2E20HXXXCXXXSXXX | 265.79 USD | In stock |

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> Source: [DDY GROUP CO.,LTD.](https://ddysupply.com/products/fc21-frequency-inverter)
> Updated: 2026-08-29