176F3020 Danfoss
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The Danfoss 176F3020 is a Power Card from the VLT PowerCards series, designed with a 12-pulse topology and a voltage class of 500 V. It supports drive power up to 450 kW and has a net weight of 0.531 kilograms. The card also features a total volume of 14.157 cubic decimeters.
Internal Product Review
The 176F3020 is a Danfoss VLT PowerCard designed for demanding industrial drive applications, offering reliable 12-pulse topology for enhanced power quality. Supporting up to 450 kW drive power and rated for 500 V voltage class, this power card is well-suited for high-capacity systems. Its efficient design and compatibility with DrivePro Services make it a strong choice for advanced motor control.
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Product Description:
The 176F3020 is a modular power interface board developed by Danfoss for the VLT PowerCards series. As an internal subassembly, the card plugs into high-power VLT medium-voltage drives and distributes rectified DC to the inverter section. This arrangement lets the drive route energy from the front-end section to the inverter modules through short, low-impedance connections. In production lines and HVAC systems, it serves as an internal assembly that can be accessed without removing the whole cabinet. By carrying the gating and current paths for insulated-gate bipolar transistor stacks, it enables precise speed regulation of induction or permanent-magnet motors used in automated machinery.
This board has a net mass of 0.531 kg, so it can be mounted on the heat sink rail without lifting equipment. Its topology uses a 12-pulse arrangement, meaning it pairs two six-pulse diode bridges with a phase-shifting transformer to lower input harmonic distortion and improve power factor. The design is graded for a 500 V voltage class, so creepage distances and component ratings align with common 480 V AC mains systems. When installed in a compatible drive frame, the card can channel up to 450 kW of motor power, matching the thermal capacity of large air handlers, compressors, or conveyor drives. Despite this electrical capability, the physical envelope remains only 14.157 dm³, allowing dense stacking of multiple cards in multi-drive panels.
As a Power Card, the unit forms part of the drive's internal power path and supports coordinated switching of the inverter stage. Ongoing support is linked to the DrivePro Services program, which provides standardized service procedures and traceability. The board is intended for compatible Danfoss medium-voltage platforms, where its modular format helps keep cabinet work localized to the affected section. The compact format also helps preserve internal cabinet space for bus bars, cooling ducts, and neighboring power assemblies. Its function centers on stable DC distribution and controlled gate signaling within the drive rather than on standalone motor control.
