LEROY SOMER UMV 4301 DRIVE 27T 18.5kW

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The LEROY SOMER UMV-4301-27T is an industrial variable frequency drive (VFD) from the UMV 4301 series, designed to control three-phase AC motors in the 18.5 kW power class. It provides accurate speed and torque regulation for CNC machine tools and industrial equipment.

This drive is commonly used for machine-tool spindles, auxiliary motors, pumps, fans, chip conveyors and coolant systems. It provides controlled acceleration and deceleration profiles, helping reduce mechanical stress and maintain stable motor operation.

The UMV-4301-27T is a specific configuration of the UMV 4301 series and should be matched with the original unit when performing a replacement. According to the supplied technical data, it is rated at 18.5 kW and 40 A and is designed for installation in industrial control cabinets.

This model is suitable as a replacement drive, spare part or CNC replacement component for maintenance, repair and retrofit applications. It can be used to replace a failed inverter affected by power-stage faults, nuisance trips or parameter-related issues, provided the complete reference and electrical specifications match the existing installation.

A unit can be tested on dedicated drive test equipment with a compatible motor to verify power-stage operation, control functions and I/O before shipment. Depending on availability, a refurbished unit may also be supplied, making this drive a practical solution for maintaining legacy CNC machines and industrial equipment.

Frequently asked questions about UMV-4301-27T:

Is UMV-4301-27T a drop-in replacement for an existing UMV 4301 18.5 kW drive?
Yes when the full code including the 27T suffix matches the unit installed in your cabinet. Matching the complete reference helps ensure the same hardware layout, terminals and parameter map.

Can this drive run non-LEROY SOMER motors?
It is commonly used with standard three-phase induction motors in the 18.5 kW range. Verify motor voltage and current ratings as well as control signal requirements to confirm compatibility.

What should be checked before replacement in a CNC machine?
Confirm the nameplate power, the exact product code, the available line supply and the control interface used by the machine. Back up parameters from the old unit when possible to speed up commissioning.

Does the package include braking or EMC accessories?
Accessories such as external braking resistors or line filters are application dependent and may be supplied separately. If your installation requires them, ensure they are sized for the 18.5 kW power class and the UMV 4301 series.