MITSUBISHI HC-RFS103-S1 AC Servo Motor 1kW

Buy online your MITSUBISHI HC-RFS103-S1 AC Servo Motor from our US e-store Cnc-shopping USA, specialist in CNC machine-tools spare parts.

The Mitsubishi Electric HC-RFS103-S1 is a AC servo motor designed for CNC axis positioning and industrial automation applications. Used with a compatible Mitsubishi servo amplifier, it provides precise control of position, speed and torque for feed-axis motion on milling machines, lathes and grinders.

This motor operates as part of a closed-loop servo system where encoder feedback is processed by the amplifier to maintain accurate and repeatable axis movement. It is commonly installed on X, Y or Z axes driving ballscrews or precision couplings requiring smooth low-speed operation and stable torque delivery.

The HC-RFS103-S1 features a rated output of 1 kW, operates on 3-phase AC 129 V with a current rating of 6.5 A, and reaches a maximum speed of 3000 rpm. Its IP65 protection rating makes it suitable for industrial machine environments. The motor is designed with a standard industrial flange mount and integrated feedback system for use with Mitsubishi servo drive platforms.

This model is frequently used as a replacement motor to restore CNC axis performance after encoder faults, excessive noise, overheating or mechanical wear. Matching the exact motor reference, connector type and amplifier compatibility helps ensure a reliable drop-in replacement without major modifications to the machine.

Each motor can be tested before dispatch on CNC simulators to verify electrical operation and encoder feedback performance. Industrial protective packaging, worldwide shipping and support for repair, exchange or refurbished solutions may be available depending on stock and service conditions.

Frequently asked questions about HC-RFS103-S1:

How can I confirm drive compatibility for HC-RFS103-S1?
Match the full motor code with your MITSUBISHI servo amplifier rating and feedback requirements. Check connector style and cable sets, then verify the motor’s nameplate data against the amplifier documentation for a direct interchange.

What feedback type does this motor use?
The HC-RFS family is supplied with MITSUBISHI-compatible feedback integrated for closed-loop control. Confirm the exact feedback variant from the nameplate code and align it with the amplifier’s supported interface before ordering.

Does this model include a holding brake?
Some variants in the HC-RFS series are available with a brake. Review the complete model designation and nameplate details to determine whether a brake is included, or request the version configured with the required brake option.

Is the mounting a direct swap on my machine?
Verify flange size, pilot diameter, bolt pattern and shaft dimensions against your original motor drawing. When these dimensions and the model code match, the HC-RFS103-S1 is typically a drop-in replacement.

Can I order it as a refurbished or exchange unit?
Depending on availability, Cnc-shopping can offer a refurbished unit, a tested unit from surplus stock, or an exchange service to reduce repair turnaround. Contact us with your full motor code and machine details for options.