131B4976

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The 131B4976 is a three-phase HVAC drive with a rated power of 18.5 kW and a 25 HP capacity. Manufactured by Danfoss as part of the VLT FC 102 HVAC Drives series, it features an IP21/Type 1 enclosure rating and operates on 380-480 VAC input voltage. This drive weighs 20.09 kg net.

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Product Description:

The 131B4976 frequency converter from Danfoss is made for three-phase power use and works reliably in industrial automation. The converter is from the FC-102 line, which delivers effective power management. The frequency converter is built to meet world standards and work best in industrial automation applications.

The 131B4976 frequency converter works with a mains voltage range of 380 to 480 VAC, which meets all world standards. It has an RFI blocker built in that reduces electromagnetic interference. The unit does not have a brake chopper and comes with a graphical Local Control Panel that makes tracking and making changes easier. The PCB is not protected, and it does not come with the power adapter. Adaptation A has standard wire entries that make installation easier, but Adaptation B does not have any extras. The software comes with the most recent version and a basic language pack. Under choices A, B, C, or D, no extra software or hardware add-ons are set up. The mechanical measurements are set by the frame size, which is B1. The product is 494 mm tall, 243 mm wide, and 261 mm deep, and these measurements do not change when choices are made. The converter gives out 26 kVA and has a 465 W power loss rating. The constant current rating is 37.5 A, and the peak current rating is 41.2 A. In a different setup, the steady current is 34 A, and the peak current is 37.4 A.

The 131B4976 frequency converter weighs 3.62 kg. The frequency converter has clear electrical and mechanical parts that make control reliable. Because it has a power rating of 18.5 kW (25 HP), it can work with medium power sources. The type of enclosure is IP21, which is common for protecting installations inside.

Enclosure
IP21 / Type 1
Enclosure Rating
IP21 / Type 1
Frame Size
B1
Gross Weight
23.71 kg
Horsepower
25 HP
Input Voltage
380-480 VAC
Mains Voltage
380 – 480 VAC
Net Weight
20.09 kg
Panel Type
Graphical Local Control Panel
Phase
Three phase
Phases
Three Phase
Power Rating
18.5 kW / 25 HP
Rated Power
18.5 kW
Rfi Filter
Integrated
RFI Filter
Integrated

Frequently Asked Questions about 131B4976:

Q: Why does the 131B4976 frequency converter have an uncoated PCB?

A: The 131B4976 is designed with a non-coated PCB that lowers production cost. It ensures reliable performance when installed in environments that meet enclosure specifications.

Q: How does the 131B4976 maintain reduced interference in electrical systems?

A: The 131B4976 includes an integrated RFI filter that minimizes electromagnetic noise. It ensures compliance with standard requirements and supports stable communication with sensitive equipment.

Q: Does the 131B4976 support software upgrades and language packs?

A: The 131B4976 comes with the latest release of software that ensures updated functions. It includes a standard language pack that supports global installation requirements.

Q: Why do the 131B4976 dimensions remain unchanged with options A or B?

A: The 131B4976 maintains depth at 261 mm that simplifies planning. It ensures mechanical consistency that supports accurate installation without requiring dimensional adjustments.

Q: How does the 131B4976 ensure balanced weight for installation needs?

A: The 131B4976 has a gross weight of 23.71 kg that allows predictable load handling. The package weight of 3.62 kg supports safer transport.


Internal Product Review

  • ‘‘The Danfoss frequency converter 131B4976 offers reliable power regulation for three-phase systems. It supports 26 kVA, has a B1 frame size, and delivers 465 W power loss. The product ensures consistent current handling with 37.5 A continuous and 41.2 A intermittent current.’’

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