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131U3879 Danfoss

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The Danfoss 131U3879 is part of the VLT FC 302 Automation Drives series and features a power rating of 2.2 kW with three phase power support. It comes with a brake chopper and a built-in MCB-103 resolver option. This drive has an IP20 chassis protection level and is designed for normal cabinet mounting.

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Product Description:

The 131U3879 is an AC drive produced by Danfoss for the VLT FC 302 Automation Drives series within the VLT AutomationDrive FC product group. In automated machinery, this unit regulates motor speed and torque so processes can adapt to load, energy, and throughput requirements without mechanical adjustments. It is intended for systems that need variable-speed motor control instead of fixed-speed operation. This lets the connected motor respond to process demand through electronic adjustment rather than mechanical changes. Day-to-day parameter access is handled through the graphical local control panel, which combines text, icons, and navigation keys for on-site setup or troubleshooting. The display layout supports quick navigation through operating values and parameter menus.

The drive operates from a supply of 380 - 500 VAC delivered on three-phase power, allowing it to be installed on standard industrial distribution networks. Its continuous output is rated at 2.2 kW, which corresponds to a mechanical capacity of 3.0 HP for applications such as conveyors, pumps, or small production lines. A built-in brake chopper dissipates regenerated energy during fast deceleration, which often removes the need for an external braking resistor. Normal cabinet mounting for frames A, B, and C simplifies integration, and standard cable entries match common gland plates. The printed circuit boards are not coated, so the unit is better suited to clean, temperature-controlled enclosures where conformal protection is unnecessary.

The MCB-103 resolver option can be fitted when shaft position feedback is needed for coordinated motion. With this option installed, the drive can receive feedback information for applications that need position-aware control. Electrical safety is supported by the IP20/chassis enclosure, which provides basic finger protection after the unit is mounted behind a door. An integrated RFI filter reduces conducted emissions, helping the installation meet common EMC limits without additional line filtering. The enclosure type is intended for protected cabinet installation rather than open mounting in exposed areas.

A Option
No Option
Adaptation B
No adaptation
B Option
MCB-103 Resolver Option
Brake - Safe Stop
Brake chopper
C Option Software
No Software Option
C0 Option MCO
No C0 Option
C1 Option
No C1 Option
Cable Entries
Standard
D Option
No D Option
Horse Power
3.0 HP
Language Pack
Standard
LCP
Graphical Local Control Panel
Mains Option
No Mains Option
Mains Voltage
380 - 500 VAC
Mounting
Normal cabinet mount A, B & C Frames
PCB Coating
Not Coated
Power Phase
Three Phase Power
Power Rating
2.2 KW
Product Group
VLT AutomationDrive FC
Protection Level
IP20 / Chassis
RFI Filter
RFI Filter
Series Identifier
302
Software Release
Latest Release

Frequently Asked Questions about 131U3879:

Q: What mains voltage does the Danfoss 131U3879 VLT FC 302 Automation Drive support?

A: The 131U3879 automation drive supports a mains voltage range of 380 - 500 VAC.

Q: What is the horse power rating of the 131U3879 automation drive?

A: This model outputs 3.0 HP, delivering reliable power for automation needs.

Q: What power phase does the Danfoss 131U3879 drive require?

A: The 131U3879 is designed to operate with three phase power input.

Q: What type of local control panel is included with the 131U3879 drive?

A: The 131U3879 provides a graphical local control panel, making onsite adjustments straightforward.

Q: What is the protection rating and mounting style of the Danfoss 131U3879 drive?

A: This model features a protection level of IP20 and is suitable for cabinet mounting.


Internal Product Review

  • ‘‘The 131U3879 is a Danfoss VLT FC 302 Automation Drive designed for three-phase power systems and offers a 2.2 kW (3.0 HP) power rating. Featuring a graphical local control panel and integrated RFI filter, this drive ensures precise control and reliable electromagnetic compatibility. The inclusion of a brake chopper makes it an excellent choice for demanding automation applications.’’

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