178B0477 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT5002PT5B20STR3DLF30A00C0
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The Danfoss 178B0477 is part of the VLT 5000 Frequency Converters series and operates on a 380-500 V three-phase supply. It features a bookstyle IP20 enclosure and comes with a display unit. The converter has a process control card, DeviceNet fieldbus, and a Class A1 and B RFI filter.
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Product Description:
The 178B0477 is a frequency converter manufactured by Danfoss within the VLT 5000 Frequency Converters series. As an adjustable-speed drive, it modulates the AC voltage and frequency supplied to an induction motor so production equipment can match torque and speed to changing process demands. The converter occupies a narrow book-style frame that supports dense cabinet layouts and is intended for general plant automation where reliable motor control, efficient energy use, and straightforward integration with existing three-phase power distribution are required.
Electrical performance is based on a three-phase input range of 380–500 V, allowing the unit to connect directly to typical industrial power supplies without a transformer. At 110% overload, the inverter delivers 1.5 kW, while the 160% torque rating corresponds to 1.1 kW. These ratings allow motor selection to account for the operating duty cycle instead of relying only on peak load. The converter is housed in a book-style IP20 enclosure that provides finger-safe protection inside a cabinet while keeping airflow unobstructed along the heat sink. Conducted emissions are limited by an integrated Class A1 and B filter, supporting installation in areas that require reduced radio-frequency interference.
A process control card manages feedback loops for applications that require regulated motor or process variables. The unit includes a supplied display that provides local access to operating values, settings, and diagnostic information. For fieldbus connectivity, the drive supports DeviceNet, allowing cyclic setpoint exchange with PLCs and diagnostic retrieval over the same network cable. The unit uses uncoated circuit boards, making it best suited to clean, dry cabinet environments rather than locations with high humidity or corrosive airborne contaminants. Local controls and network communication provide separate methods for monitoring converter status and adjusting operating parameters. The narrow enclosure also helps preserve cabinet space for neighboring automation components while maintaining the clearances needed for cooling airflow.
