VLT 5003 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
The Danfoss VLT 5003 is part of the VLT 5000 Frequency Converters series and provides an output current of 7.8 A at 200-240 V, with a true power factor of 0.90. This converter supports 8 digital inputs, 2 analog voltage inputs, and 1 analog current input, as well as 4 pulse or encoder inputs. It also features a maximum motor and power cable size of 4 mm² or 10 AWG and can handle a short-circuit rating up to 100,000 A.
Internal Product Review
The VLT 5003 is a Danfoss VLT 5000 frequency converter with a 0.90 true power factor for efficient drive control. Integration is excellent with 8 digital inputs and 4 pulse/encoder inputs for flexible signal handling. A 100,000 A short-circuit rating adds valuable protection margin, making the VLT 5003 a dependable choice for industrial drive systems.
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Product Description:
The VLT 5003 is a variable frequency converter produced by Danfoss for the VLT 5000 Frequency Converters series. In automated plants, this unit modulates the supply to small-frame induction motors so conveyor sections, pumps, or fans can be driven at the exact speed demanded by the control system. By translating a fixed mains frequency into a regulated three-phase output, it supports energy savings and process accuracy without requiring mechanical throttling devices.
For fractional-kilowatt machines on 230 V lines, the drive can deliver a phase current of 7.8 A, while 380–440 V networks are served at 4.1 A. A maximum short-circuit current rating of 100,000 A allows the converter to be installed on high-capacity bus bars protected by modern current-limiting circuit breakers. Thermal performance is reflected in a power loss of 95 W at 200–240 V, so cabinet ventilation must remove approximately that amount of heat under continuous load. With a power factor of 0.90, upstream feeders experience reduced reactive current. The motor and line terminals accept conductors up to 4 mm² (10 AWG). The unit also supports operation at 550 V when the application requires a brief 110% overload. Additional power losses of 92 W on 380–500 V supplies and 102 W on 525–600 V supplies help determine enclosure cooling requirements across the available voltage classes.
The control board is powered by a 24 V DC rail drawing 200 mA and provides several field interfaces. These connections include one analog current input, two analog voltage inputs, and eight digital inputs for start and stop commands, preset speeds, or alarm resets. Motion feedback or flow-metering devices can be attached to four pulse or encoder channels, while status signals leave the inverter through two digital or analog outputs. All input and output points terminate on the same control card, which processes torque commands and monitors drive operation. This arrangement centralizes signal connections and reduces the amount of control wiring required in compact machines.
