131B1281 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
The Danfoss 131B1281 is part of the VLT FC 301 Automation Drives series and has a power rating of 3.0 kW with an efficiency of 0.97. This drive features an IP20 enclosure, measures 268 mm in height, 90 mm in width, and 205 mm in depth, and supports three supply phases. It provides a continuous output current of 7.2 A at 380-440 V and uses a numerical local control panel.
Internal Product Review
The 131B1281 is a Danfoss VLT FC 301 automation drive with a 3.0 kW power rating and 0.97 efficiency. IP20 enclosure protection and a numerical local control panel support clean cabinet integration and straightforward commissioning. A 7.2 A continuous output current gives this drive strong appeal for dependable industrial motor control.
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Product Description:
The 131B1281 is a variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. As a motor controller, it converts fixed-frequency three-phase power into an adjustable output that regulates induction motor speed in conveyors, pumps, and general process equipment. This function allows automation systems to match motor torque with real-time load requirements while limiting energy consumption and mechanical stress.
The drive delivers a shaft output of 3.0 kW, and its apparent power demand at 400 V reaches 5.0 kVA. Continuous operation on a 380–440 V supply draws 6.5 A from the power source and provides a rated output of 7.2 A to the motor terminals. For short-term acceleration or sudden load changes, the inverter can supply 11.5 A without derating. Overall conversion efficiency is 0.97, so only 116 W is dissipated as heat during nominal operation. Thermal losses are removed through natural convection, and the IP20 open-frame housing is intended for installation in a protected electrical cabinet. A numerical local control panel provides direct access to operating parameters and drive settings. The model is supplied without a brake chopper or PCB coating, making it suitable for standard indoor environments that do not require dynamic braking or conformal-coated electronics.
The drive uses the compact A2 frame for panel mounting. The enclosure has a width of 90 mm, a depth of 205 mm, and a height of 268 mm, allowing high-density panel layouts where cabinet space is limited. Its narrow profile leaves more horizontal space for adjacent control components, circuit protection, and cable channels. Installation clearances must provide enough open space around the enclosure for proper heat dissipation and unobstructed airflow. Power and motor conductors connect through dedicated terminals, keeping the incoming supply separate from the adjustable motor output. The local keypad allows operators to view operating values, modify parameters, and issue basic start or stop commands directly from the front of the drive.
