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131H3897 Danfoss

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Internal Product Review

The Danfoss 131H3897 is a VLT FC 102 HVAC drive designed for 200 to 240 VAC and three-phase power. A 15 kW / 20 HP rating gives the unit strong suitability for fan and pump duty with dependable load handling. The graphical local control panel and IP20/chassis construction support efficient commissioning and clean cabinet integration, making this drive a strong HVAC choice.

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Product Description:

The 131H3897 variable frequency drive is built by Danfoss as part of the VLT FC 102 HVAC Drives series. Within the VLT HVAC Drive product group, it serves as a speed controller for centrifugal fans, pumps, and compressors in automated heating, ventilation, and air conditioning systems. By converting fixed-frequency utility power into a regulated output, the unit allows building control networks to adjust motor speed in real time. This control helps maintain the required airflow or pressure while reducing energy use and mechanical wear in industrial automation environments.

Electrical capacity is rated at 20 HP, which corresponds to a continuous mechanical output of 15 kW. The input section accepts 200–240 VAC utility power and connects directly to the plant distribution system. Internally, the inverter generates sinusoidal pulse-width modulation that is delivered through a three-phase power output, providing controlled motor torque across the operating speed range. A built-in RFI filter attenuates conducted radio-frequency interference and helps the installation meet applicable electromagnetic compatibility requirements. Standard cabinet mounting for A, B, or C frames positions the heat sink inside the enclosure and requires sufficient clearance for cooling airflow and wiring access.

Adaptation A provides standard cable entries, allowing power and control conductors to enter the enclosure through the normal connection points. The operator interface is a graphical local control panel, which provides direct access to operating data, drive parameters, status information, and diagnostic messages without requiring a separate computer. The drive electronics use an uncoated printed circuit board, so the surrounding cabinet should protect internal components from excessive moisture, dust, and corrosive airborne contaminants. The drive has no brake chopper, which means an external braking resistor cannot be connected directly to the unit for dissipating regenerated energy. The enclosure has an IP20 chassis rating, protecting against accidental contact with internal electrical parts while requiring installation inside a suitable ventilated cabinet. The cabinet should also provide adequate spacing around the drive to support heat removal and prevent nearby equipment from obstructing airflow.

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
20 HP
LCP
Graphical Loc. Cont. Panel
Mains Option
No Mains Option
Mains Voltage
200 - 240 VAC
Mounting
Normal cabinet mounting A, B, C Frames
Power Phase
Three Phase Power
Power Rating
15 KW
Product Group
VLT HVAC Drive
Protection Level
IP20 / Chassis
RFI Filter
RFI Filter
Series Identifier
102

Frequently Asked Questions about 131H3897:

Q: What is the horsepower rating of the Danfoss 131H3897 drive?

A: The 131H3897 is rated for 20 horsepower, providing substantial power output for HVAC applications.

Q: What mains voltage does the 131H3897 VLT FC 102 HVAC Drive support?

A: This model supports a mains voltage range from 200 to 240 VAC, suitable for common industrial electrical systems.

Q: What type of local control panel does the 131H3897 provide?

A: A graphical local control panel is included, allowing easy monitoring and adjustments directly from the unit.

Q: What level of protection and mounting does the Danfoss 131H3897 offer?

A: The 131H3897 offers IP20 protection and comes in a chassis design for standard cabinet mounting.

Q: What type of power phase is required for the Danfoss 131H3897 HVAC Drive?

A: This drive uses three-phase power input for efficient and balanced operation in demanding environments.

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