176F3501 Danfoss
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The Danfoss 176F3501 is a power card from the VLT PowerCards series featuring a ruggedized PCB coating. It supports a mains voltage of 525 to 690 VAC and has a power rating of 315 kW. The unit weighs 1.2 kg and occupies a volume of 14.267 cubic decimeters.
Internal Product Review
The 176F3501 VLT PowerCard from Danfoss operates reliably with a power rating of 315 kW and supports mains voltages from 525 to 690 VAC. Its ruggedized PCB coating enhances durability in demanding environments. This power card is well-suited for applications requiring high endurance and electrical strength.
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Product Description:
The 176F3501 belongs to the VLT PowerCards series produced by Danfoss. This component is a plug-in power card installed inside VLT drive stacks to manage high-power switching and signal routing between the rectifier, DC link, and inverter stages. In industrial automation, a dedicated card layout keeps the power section modular and supports compact integration inside large-frame drives. That arrangement supports controlled current transfer between stages while keeping the internal power path short. It also separates high-energy switching functions from nearby low-power control circuitry.
The card is rated for a mains window of 525-690 VAC, so the associated drive can connect directly to common 575 V or 690 V plant supplies without a step-down transformer. Its continuous throughput is 315 kW, which suits high-horsepower pump, fan, or compressor duty in heavy industrial systems. The printed circuit board has a ruggedized coating that helps resist conductive dust and vibration inside cabinets. The coating also helps limit surface leakage in contaminated environments. An overload class of NO means the drive current limit does not use a time-based inverse characteristic, so external protection settings must match the application.
The card has a net mass of 1.2 kg, which reduces mechanical loading on backplane connectors during handling and installation. Its volume is 14.267 cubic decimeters, allowing close packaging around bus bars and adjacent control boards in the enclosure. Identified by PCA type as a Power Card, the board includes gate drivers, snubbers, and monitoring points for the main inverter bridges. Those circuits support controlled switching and status observation within the drive. A serial EEPROM on the card stores electronic data used by the drive system, supporting recognition of the installed board during operation.
