176F2121 Danfoss
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The Danfoss 176F2121 is a power card from the VLT PowerCards series with a drive power rating of 250 kW and a drive voltage rating of 500 V. This assembly features conformal coating, a rectifier function, and a net weight of 1 kg. It is designed for use in power drive applications.
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Product Description:
The 176F2121 is a power-stage circuit board produced by Danfoss and assigned to the VLT PowerCards series. Installed near the high-current terminals of a variable-frequency drive, it handles the main electrical path between the incoming supply and the inverter section. Inside the cabinet, the board receives three-phase line power, conditions it into a regulated DC link, and distributes gate-drive signals to the inverter transistors so motor output can be controlled with stable switching behavior. Because it operates in the power section rather than in the low-level control section, the board is built to manage substantial current flow while supporting the switching process of the drive.
The board is described as a Power Card, which means it is intended for the main current path rather than for signal-level processing. It supports a continuous drive output of 250 kW, making it suitable for high-power applications such as large fans, pumps, or compressors. A DC-link rating of 500 V matches the standard 500-volt drive platform used by this product group. Each populated side is protected by a conformal coating that helps guard against condensation and airborne contamination. Its integrated Rectifier section converts incoming AC power into the stabilized DC required by the inverter stage.
The conflicting manufacturer reference has been removed so the description remains consistent with the Danfoss product identification. The board has both a gross and net weight of 1 kg, so it adds little mass to the assembled drive. That low weight suits a subassembly that mounts directly inside the drive instead of using a separate enclosure. The board also uses the mounting pattern and connector layout intended for this power-stage position, allowing it to fit the chassis and bus structure without unnecessary bulk.
Frequently Asked Questions about 176F2121:
Q: What assembly type is the 176F2121 from Danfoss categorized as?
A: The Danfoss 176F2121 is a Power Card assembly specifically designed for power conversion applications.
Q: Does the 176F2121 Power Card include a conformal coating for protection?
A: This unit is coated with a conformal coating, which helps protect the card from environmental factors such as moisture and dust.
Q: What is the maximum drive power rating supported by the 176F2121 Power Card?
A: The 176F2121 Power Card is rated for use in drives with power ratings up to 250 kW.
Q: What drive voltage rating does the Danfoss 176F2121 support?
A: This model supports a drive voltage rating of 500 V, making it suitable for medium-voltage applications.
Q: What electrical function does the 176F2121 Power Card provide?
A: The 176F2121 features an integrated rectifier function for AC to DC power conversion within the drive system.
