VACON0020-3L-003-4-X-SEE9+TQGL Danfoss
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The Danfoss VACON0020-3L-003-4-X-SEE9+TQGL is part of the VACON 20 Low Voltage Drives series and features a 0.75 kW motor power with a nominal input current of 3.2 Amps. It supports Modbus RTU over RS-485 for built-in fieldbus capability and includes a continuous current rating of 2.4 Amps. The drive has dimensions of 66 mm width, 160 mm height, 98 mm depth, and weighs 0.55 kg.
Internal Product Review
The VACON0020-3L-003-4-X-SEE9+TQGL is a Danfoss low voltage drive rated for 0.75 kW motor power with 3-phase input. Built-in Modbus RTU and an RS-485 fieldbus level make network integration clean and technically efficient for standard automation layouts. A 3.6 A overload current gives the drive solid performance margin for light industrial motion control.
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Product Description:
The VACON0020-3L-003-4-X-SEE9+TQGL is an AC variable-frequency drive manufactured by Danfoss for the VACON 20 Low Voltage Drives series. Designed for cabinet or machine-side mounting, the unit accepts low-voltage mains power and modulates the output to regulate the speed of small induction motors used in conveyors, mixers, or pumps. A built-in Modbus RTU interface allows direct command and monitoring from a PLC or HMI without add-on modules, making the drive suitable for distributed automation architectures where space and wiring need to be minimized.
The drive is designed for light-duty machinery powered by a three-phase supply. Its nominal input current is 3.2 A, while the inverter can deliver a continuous motor current of 2.4 A and sustain an overload current of 3.6 A for short acceleration periods. Short-circuit protection is provided by a 6 A semiconductor fuse installed in the upstream feeder. Pulse-width modulation operates at a default carrier frequency of 4 kHz, balancing acoustic noise and thermal losses. Communication wiring connects to the internal control board through the RS-485 physical layer, which supports the Modbus protocol indicated by the type code. The power input accommodates a 3 × 1.5 + 1.5 mm² mains cable. The compact enclosure measures 66 mm wide, 98 mm deep, and 160 mm high, allowing multiple drives to be arranged on a DIN rail without exceeding common panel footprints.
The drive is rated for motors up to 0.75 kW, and its output terminals support a shielded motor cable up to 30 m long without additional output filters. Internal fans move 10 m³/h of cooling air across the heat sink to maintain safe semiconductor junction temperatures while the switching frequency and overload current are active. The unit has a mass of 0.55 kg, allowing it to be mounted on light-gauge back panels or directly on machine frames without additional reinforcement. Its compact dimensions and forced-air cooling also help conserve installation space while providing sufficient airflow around internal power components.
