137X2566 Danfoss iC7-Automation 355kW/500 3 phase low-harmonic drive

Why Choose the Danfoss 137X2566 iC7-Automation Enclosed Drive?

The Danfoss 137X2566 is a high-power iC7-Automation enclosed variable frequency drive (VFD) designed for precise speed and torque control of large three-phase AC motors in demanding industrial automation and process applications. As part of the advanced Danfoss iC7-Automation enclosed drive series, it is engineered for installations requiring dependable motor control, efficient operation and flexible integration into modern industrial systems.

This enclosed drive combines low-harmonic drive technology, robust cabinet construction and industrial communication capability. The iC7 enclosed platform is designed for highly demanding applications, offering configurable cabinet options that support reliable operation, improved power quality and straightforward integration into complex automation networks.

With a rated output power of 355 kW / 500 HP, a 658 A current rating, a three-phase 380-500 V AC supply and an IP21 / UL Type 1 enclosure, the Danfoss 137X2566 is ideal for large pumps, fans, compressors, conveyors and process machinery. Its Modbus TCP communication, standard I/O and integrated STO and SS1-t functional safety make it suitable for heavy-duty industrial control systems.

Key Advantages

• High-power enclosed variable frequency drive for industrial automation.
• 355 kW / 500 HP power rating for demanding large motor applications.
• 658 A current rating suitable for heavy-duty industrial systems.
• Three-phase 380-500 V AC input for industrial power networks.
• Low-harmonic drive design helps improve power quality.
• IP21 / UL Type 1 enclosure for protected industrial installation.
• Modbus TCP communication for automation and control network integration.
• Integrated Safe Torque Off (STO) and SS1-t functional safety.

Key Features

• Danfoss iC7-Automation enclosed drive series.
• 355 kW / 500 HP rated output power.
• 658 A rated current.
• Three-phase 380-500 V AC input supply.
• Low-harmonic enclosed drive configuration.
• IP21 / UL Type 1 protection rating.
• Frame AE11 + IE11.
• EMC Category C3.
• Modbus TCP OS7MT communication interface.
• STO and SS1-t safety functions with fieldbus support.
• Control Panel 2.8 OPX20 operator interface.
• Standard I/O with I/O and Relay Option OC7C1.
• Common-mode output filter included.

Reliable Motor Control for Heavy Industrial Systems

Variable frequency drives such as the Danfoss 137X2566 regulate motor speed and torque by adjusting output voltage and frequency. This allows large industrial motors to operate more efficiently while improving process control, reducing mechanical stress and supporting smoother machine performance.

The Danfoss iC7-Automation enclosed drive platform is built for industrial environments where high power capacity, connectivity, functional safety and power quality are important. Its low-harmonic design helps reduce electrical network distortion, supporting reliable operation in plant, process and heavy machinery systems.

Typical Applications

• Large industrial pumps and pumping stations.
• Fans, blowers and ventilation systems.
• Compressors and process machinery.
• Material handling and conveyor systems.
• Water and wastewater treatment plants.
• Manufacturing and production lines.
• Mining, minerals and heavy industrial equipment.
• Process automation and plant engineering systems.