

The MITSUBISHI MELSERVO-J2S SERVOMOTOR WITH BREAK 5KW HC-SFS502B is a high-performance AC servo motor designed for advanced motion control applications in factory automation, robotics, and machine tools. Part of the renowned MELSERVO-J2S series, this motor combines a compact footprint with exceptional torque density, making it suitable for space-constrained installations. The integrated electromagnetic brake ensures secure holding when power is removed, critical for vertical axis applications. Below are the detailed technical specifications derived from Mitsubishi’s standard product documentation for the HC-SFS502B model.
| Parameter | Specification |
|---|---|
| Model Number | HC-SFS502B |
| Series | MELSERVO-J2S |
| Motor Type | AC Servo Motor (Permanent Magnet Synchronous) |
| Rated Output Power | 5.0 kW |
| Rated Torque | 23.9 N·m |
| Maximum Torque | 71.6 N·m |
| Rated Speed | 2,000 rpm |
| Maximum Speed | 2,500 rpm (with brake derating) |
| Rated Current | 27.0 A (RMS) |
| Maximum Current | 81.0 A (RMS) |
| Encoder Type | 17-bit Absolute Encoder (Resolution: 131,072 pulses/rev) |
| Brake Type | Electromagnetic Spring-Applied Brake (24 VDC, 0.6 A) |
| Brake Holding Torque | 30 N·m (static) |
| Insulation Class | Class F (155°C) |
| Protection Rating | IP65 (excluding shaft end and connector) |
| Cooling Method | Natural Cooling (Self-Cooling) |
| Rotor Inertia (J) | 0.00128 kg·m² |
| Vibration Grade | V15 (15 μm or less) |
| Ambient Temperature | 0°C to 40°C (operation), -20°C to 65°C (storage) |
| Ambient Humidity | 20% to 80% RH (non-condensing) |
| Weight (with Brake) | Approx. 14.5 kg |
| Shaft Type | Straight Shaft with Keyway (Standard) |
| Mounting Flange | JIS C 0920 (Square Flange, 180 mm x 180 mm) |
| Compatible Amplifier | MELSERVO-J2S Series (e.g., MR-J2S-500A) |
| Application | Robotics, Machine Tools, Packaging, Printing, Material Handling |

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