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131B8125 Danfoss

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The Danfoss 131B8125 is part of the VLT FC 102 HVAC Drives series and provides a power rating of 1.1 kW, or 1.5 HP. It accepts three phase power and features a graphical local control panel and normal cabinet mounting for A, B, and C frames. The drive offers IP20 protection and a standard language pack, without an RFI filter or brake chopper.

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Product Description:

The 131B8125 is an AC variable frequency drive produced by Danfoss for the VLT FC 102 HVAC Drives series. In building automation systems, it adjusts the speed of centrifugal fans, pumps, and compressors. This variable-speed control allows airflow or fluid delivery to match real-time demand while reducing unnecessary energy use. The drive is intended for heating, ventilation, and air-conditioning equipment that requires controlled motor operation under changing loads.

This model accepts power from three-phase power networks and converts it into a pulse-width-modulated output for the connected motor. Its continuous electrical capacity is 1.1 kW, which is equivalent to 1.5 HP and allows it to control small to midsize blower motors in air-handling units. The enclosure has an IP20 chassis rating, so the drive must be mounted inside a protected panel that prevents exposure to moisture and excessive contamination. Local setup is handled through the integrated graphical local control panel, which displays operating parameters, status information, and fault codes. Wiring enters through standard cable entries, while the mechanical layout supports normal cabinet mounting on A, B, or C frames. An internal radio-frequency interference filter is not installed, so external filtering is required in applications where electromagnetic compatibility limits must be met.

During category 0 stops, the inverter disables its output because the drive has no brake chopper. As a result, applications that require controlled dissipation of regenerative energy must use suitable external equipment. The circuit boards use an uncoated PCB design, so the surrounding cabinet must remain dry, clean, and protected from corrosive airborne contaminants. This configuration is best suited to indoor electrical enclosures with controlled operating conditions. Multilingual navigation is available through the standard language pack, allowing menus and operating messages to be viewed in supported languages. The base configuration does not include additional mains modules or factory adaptations, leaving accessory selection dependent on the requirements of the HVAC installation.

A Option
No A Option
Adaptation A
Standard Cable Entries
Adaptation B
No adaptation
B Option
No B Option
Brake - Safe Stop
No brake chopper
C0 Option MCO
No C0 option
C1 Option
No C1 option
Coating PCB
Not coated PCB
D Option
No D option
Horse Power
1.5 HP
LCP
Graphical Loc. Cont. Panel
Mains Option
No Mains Option
Mounting
Normal cabinet mounting A, B, C Frames
Power Phase
Three Phase Power
Power Rating
1.1 kW
Product Group
VLT HVAC Drive
Protection Level
IP20 / Chassis
RFI Filter
No Filter Installed
Series Identifier
102
Software Language Pack
Standard Language Pack

Frequently Asked Questions about 131B8125:

Q: What is the maximum power rating of the 131B8125 drive?

A: The VLT FC 102 HVAC Drive 131B8125 supports a maximum power rating of 1.1 kW, making it suitable for small to medium HVAC applications.

Q: What power phase configuration does the 131B8125 VLT FC 102 support?

A: This model provides three-phase power input, allowing it to efficiently control three-phase motors.

Q: What type of control panel is included with the 131B8125 drive?

A: The 131B8125 comes with a graphical local control panel (LCP) for straightforward operation and configuration.

Q: What level of protection does the 131B8125 VLT FC 102 HVAC drive offer?

A: This drive has an IP20 protection level with a chassis-type enclosure, so it is best suited for installations within closed panels.

Q: Is an RFI filter installed in the 131B8125 drive from Danfoss?

A: The 131B8125 does not include an RFI filter, which may be needed for applications requiring electromagnetic compatibility compliance.


Internal Product Review

  • ‘‘The 131B8125 is a Danfoss VLT FC 102 HVAC drive designed for efficient three-phase power control at 1.1 kW. A graphical local control panel supports straightforward setup, while IP20/chassis protection makes the unit a solid choice for cabinet-mounted HVAC installations.’’

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