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137U4250 Danfoss 45kW Three Phase iC7-Automation Variable Speed Drive

MPN: 137U4250

Alt. SKU: IC7-60FA3N05-90A0E21F1+ACBC+ALDC+BAPR+BDBA+BEF2+BF20+DAAU

Special Price £10,577.28 £8,814.40 Regular Price £13,221.60

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Why Choose the Danfoss 137U4250 iC7-Automation Frequency Converter?

The Danfoss 137U4250 is a robust iC7-Automation frequency converter designed for accurate three-phase motor control in industrial automation and machinery applications. As part of the advanced Danfoss iC7-Automation drive platform, it delivers efficient speed regulation, dependable performance and flexible integration into modern control systems.

This air-cooled variable speed drive is engineered for protected industrial installations where precise motor control, functional safety and automation network connectivity are required. Its IP21 / UL Type 1 enclosure provides added protection for electrical cabinet and plant room installations, while its standard I/O and communication options support straightforward system integration.

With a rated motor power of 45 kW, a rated output current of 90 A and a three-phase 380-500 V AC supply, the Danfoss 137U4250 is ideal for pumps, fans, conveyors, compressors, production machinery and OEM automation systems.

Key Advantages

  • Efficient industrial frequency converter for automation and machinery applications.
  • 45 kW motor power rating suitable for medium-to-high power industrial drive systems.
  • 90 A rated output current for precise three-phase motor control.
  • Three-phase 380-500 V AC input compatible with industrial power supplies.
  • IP21 / UL Type 1 enclosure for protected industrial installation.
  • Integrated Safe Torque Off (STO) and SS1-t safety functionality.
  • PROFINET RT fieldbus support for automation network integration.
  • Air-cooled construction for reliable thermal performance.

Key Features

  • Danfoss iC7-Automation series.
  • 45 kW typical motor power rating.
  • 90 A rated output current.
  • Three-phase 380-500 V AC input supply.
  • Air-cooled frequency converter construction.
  • IP21 / UL Type 1 protection rating.
  • Frame size FK073.
  • EMC category C1 and C2.
  • PROFINET RT OS7PR fieldbus protocol enabled.
  • Integrated Ethernet port.
  • Integrated STO and SS1-t functional safety.
  • Control Panel 2.8 OPX20 interface.

Technical Specifications

  • Manufacturer: Danfoss
  • Series: iC7-Automation
  • Part number: 137U4250
  • Catalogue number: 7FC-AUFA3N05-90A0E21F1-000145298
  • Model code: IC7-60FA3N05-90A0E21F1+ACBC+ALDC+BAPR+BDBA+BEF2+BF20+DAAU
  • Product type: Frequency converter / variable speed drive
  • Typical motor power: 45 kW
  • Rated output current: 90 A
  • Input voltage: 380-500 V AC
  • Input phases: 3-phase
  • Cooling method: Air cooled
  • Protection rating: IP21 / UL Type 1
  • Frame size: FK073
  • EMC category: C1 and C2
  • Communication protocol: PROFINET RT OS7PR
  • Other communication: Ethernet port
  • Standard I/O: 4×DI, 2×DI/O, 2×AI, 1×AO, 2×RO
  • Functional safety: STO, SS1-t, fieldbus
  • Control panel: OPX20

Reliable Motor Control for Industrial Systems

Frequency converters such as the Danfoss 137U4250 regulate motor speed by adjusting output voltage and frequency. This helps improve process control, reduce energy consumption and minimise mechanical stress on motors, pumps, fans and driven equipment.

The iC7-Automation platform is designed for modern industrial systems where reliable operation, communication flexibility and functional safety are essential. With PROFINET RT communication, integrated Ethernet and STO / SS1-t functionality, this drive is well suited to automated production environments and machine control panels.

Typical Applications

  • Industrial conveyors and material handling systems.
  • Pumps, fans and ventilation equipment.
  • Compressors and process machinery.
  • Packaging and production lines.
  • Machine building and OEM automation systems.
  • Water treatment and utility applications.
  • General industrial motor speed control.

Frequently Asked Questions

What is the Danfoss 137U4250 used for?

The Danfoss 137U4250 is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.

What motor power does this drive support?

The drive is typically rated for motors up to approximately 45 kW, depending on the application and motor conditions.

What output current does this drive provide?

The drive has a rated output current of approximately 90 A.

What supply voltage does the Danfoss 137U4250 require?

The drive operates from a three-phase 380-500 V AC supply.

Which communication protocol is enabled?

The Danfoss 137U4250 supports PROFINET RT communication and includes an Ethernet port for automation network connectivity.

Trusted for Industrial Automation

Danfoss iC7-Automation drives are trusted by engineers, OEMs and system integrators for reliable motor control, efficient operation and seamless integration into modern automation systems.
More Information
Manufacturer Part Number 137U4250
Barcode 5715253726687
Communication PROFINET RT OS7PR
Packed Quantity 1
Height 770mm
Width 239mm
Depth 327mm
Ambient temp HO (1/10 min) 45°C/113°F
Ambient temp HO2 (1/5 min) 45°C/113°F
Ambient temp LO (1/10 min) 45°C/113°F
Ambient temp. normal overload 45°C/113°F
Amperage 90A
A option Option slot available for later addtion
B option Option slot not available
C Option Option slot available for later addtion
D Option Option slot available for later addtion
E Option Option slot available for later addtion
Cable entry and EMC plate Standard plate
Continous current IH (1/10min) 90/81A
Continous current IL (1/10min) 90/81A
Brake - Safe-Stop Brake chopper
Cable entry plate Standard plate
Continous current IH (1/5min) 73/66A
Coating PCB Not coated PCB
Control Panel Control Panel 2.8 OPX20
Control Panel Included Yes
Efficiency class-Relative loss IE2 - 1.50%
EMC Screen Yes
Filter C1 and C2 filter
Frame Size FK07
Functional safety STO, SS1-t, fieldbus
HP Rating 60
Input curent HO2 (1/5 min) 70/61A
Input current HO (1/10 min) 85/74A
Input current in Normal Overload 85/74A
Input current LO (1/10 min) 85/74A
Input Frequency 50/60Hz
Input Voltage 3x380-500VAC
Interface board MicroSD card reader and RTC
Degree of protection (IP) IP21 / TYPE 1
KW Rating 45kW
Maximum Power Loss LO [W] 992
Onboard I/O 4xDI,2xDI/O,2xAI,1xAO,2xRO
Output Frequency 590Hz
Overload current IH (1/10min) 135/122A
Overload current IH (1/5min) 110/99A
Overload current IL (1/10min) 99/89A
Output Phases Three phase
Short Circuit Release 100kA
VSD Range Danfoss iC7-Automation
Typical motor power PH2 (150%) 37KW(400V)/50HP(460V)
Manufacturer Danfoss
Typical motor power PL (110%) 45KW(400V)/60HP(460V)
Typical motor power PH (150%) 45KW(400V)/60HP(460V)
Alternative Product SKU IC7-60FA3N05-90A0E21F1+ACBC+ALDC+BAPR+BDBA+BEF2+BF20+DAAU
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