| Primary brand | Mitsubishi Electric |
| Main function | AC servo motor |
| Product series / family name | MELSERVO J2S series |
| Sub-range name | HA-LF series |
| Functions | AC brushless rotary servo motor |
| Design | straight shaftbuilt-in absolute feedback encod. (17-bit)oil seallow inertia / medium-large power capacityfan cooling |
| Supply voltage (AC) | 400Vac class |
| Rated current | 143A |
| Rated active power (kW) | 50kW |
| Rotational speed | 1500rpm2000rpm (maximum) |
| Torque | 318Nm nominal |
| Maximum torque | 796Nm |
| Moment of inertia | 0.1870kg.m2 (1870kg.cm2) |
| Net Height (mm) | 455 mm |
| Net Width (mm) | 352 mm |
| Net Depth (mm) | 955 mm |
| Mounting mode | 350x350mm flange mounting |
| Resolution | 17-bit (equivalent to 131072ppr) feedback |
| Degree of protection | IP44 |
| Dimensions | H455mm x W352mm x D955mm |
| Ambient air temperature for operation | 0…+40 °C |
| Ambient air temperature for storage | -15°C…+70 °C |
| Maximum current | 358 A |
| Order code / Manufacturer SKU | HA-LFS50K1M4 |
| Manufacturer product status | Discontinued |
