Mitsubishi HC-RFS503B Servo Motor HCRFS503B

Description:

The Mitsubishi HC-RFS503B is a high-power AC servo motor from the MELSERVO HC-RFS series, designed for demanding industrial automation applications requiring high torque and precision control. It features an integrated electromagnetic brake and high-resolution encoder, providing accurate positioning and stable performance. Commonly installed in CNC machining centers, large automation systems, and heavy-duty production equipment, it is used by maintenance teams and system integrators for system control, retrofits, and replacement of legacy servo motors.

Applications:

The Mitsubishi HC-RFS503B servo motor is used in industrial automation systems requiring high torque and precise motion control. Typical applications include CNC machine tools, heavy material handling systems, automated production lines, and industrial machinery where consistent performance, load handling, and positioning accuracy are critical to system operation.

Technical Specifications:

• Manufacturer Part Number (MPN): HC-RFS503B
• Product Type: AC Servo Motor
• Series: MELSERVO HC-RFS
• Rated Output: 5.0 kW
• Rated Speed: 3000 RPM
• Rated Torque: ~15.9 Nm
• Voltage Class: 200 VAC class
• Rated Current: ~28 A
• Motor Type: Medium inertia servo motor
• Brake: Integrated electromagnetic brake
• Encoder: Absolute encoder (17-bit resolution)
• Mounting Flange: Approx. 130 × 130 mm
• Protection Rating: Typically IP65
• Cooling: Natural / forced air (application dependent)
• Mounting Type: Flange mount
• Weight: Approx. 22 kg
• Operating Temperature: 0°C to 40°C
• Status: Discontinued / legacy model

Common Replacements:

• Mitsubishi HF-SP502
• Mitsubishi HG-SR502
• Mitsubishi HG-JR503