137U5631 Danfoss 630kW Three Phase iC7-Automation Variable Speed Drive

Why Choose the Danfoss 137U5631 iC7-Automation Frequency Converter?

The Danfoss 137U5631 is a high-performance iC7-Automation frequency converter designed for precise speed and torque control of large three-phase AC motors. As part of the advanced Danfoss iC7-Automation drive series, it is built for demanding industrial automation applications where reliable operation, energy efficiency and flexible system integration are essential.

This air-cooled variable frequency drive combines robust construction with modern control functionality, making it suitable for heavy-duty motor control in industrial environments. With integrated functional safety, standard I/O and PROFINET communication, the Danfoss 137U5631 supports efficient integration into automation systems and control networks.

With a rated output current of 1120 A and operation from a three-phase 380-500 V AC supply, the Danfoss 137U5631 is ideal for high-power applications including pumps, fans, conveyors, process machinery and heavy industrial equipment.

Key Advantages

• High-power frequency converter for industrial automation.
• 1120 A rated output current for demanding motor applications.
• Three-phase 380-500 V AC input suitable for industrial power systems.
• IP54 / UL Type 12 enclosure for protection in harsh environments.
• Integrated Safe Torque Off (STO) functional safety feature.
• PROFINET RT fieldbus protocol enabled for industrial networking.
• Standard digital, analogue and relay I/O for flexible system integration.

Key Features

• Danfoss iC7-Automation frequency converter series.
• Air-cooled industrial drive design.
• 1120 A rated output current.
• Three-phase 380-500 V AC supply.
• IP54 / UL Type 12 protection rating.
• Frame size FB12.
• EMC category C3.
• Control Panel 2.8 OPX20 included.
• Standard I/O: 4x DI, 2x DI/O, 2x AI, 1x AO and 2x RO.
• Fieldbus protocol enabled: PROFINET RT OS7PRO.
• Ethernet port connectivity.
• Integrated Safe Torque Off (STO).

Reliable Motor Control for Industrial Systems

Frequency converters such as the Danfoss 137U5631 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This allows industrial equipment to operate more efficiently, improve process stability and reduce mechanical stress on motors and driven machinery.

The iC7-Automation platform is developed for engineers, system integrators and machine builders who need dependable drive technology with strong communication capabilities, functional safety and flexible configuration options for demanding production environments.

Typical Applications

• Large industrial pumps and pumping systems.
• Heavy-duty fans and ventilation equipment.
• Material handling and conveyor systems.
• Process automation equipment.
• Manufacturing and production machinery.
• Water and wastewater treatment plants.
• Mining, metals and heavy industry applications.
• OEM automation systems and machine building.