| Primary brand | Mitsubishi Electric |
| Main function | AC servo drive |
| Product series / family name | MELSERVO J3 series |
| Sub-range name | MR-J3 series |
| Functions | AC motion servo drive / amplifierpositioning modesine wave PWM control/current control method |
| Design | Converter unit (MR-J3-CR55K(4)) is required for the drive unit.forced ventilation coolingSSCNET III/H |
| Supply voltage (AC) | 380Vac-480Vac (400V class; 400Vac / 415Vac / 440Vac) |
| Type of network | 3-phase input (3P) |
| Rated current | 143A |
| Rated active power (kW) | 55kW |
| Protection functions | overcurrent shut-offoverload shut-off (electronic thermal)servo motor overheat protectionencoder fault protectionundervoltage/sudden power outage protectionoverspeed protectionexcessive error protection |
| Net Height (mm) | 380 mm |
| Net Width (mm) | 300 mm |
| Net Depth (mm) | 328 mm |
| Digital inputs | 1 x digital input (24Vdc; sink/source) (EM1)1 x digital input (24Vdc; sink/source) (DI1)1 x digital input (24Vdc; sink/source) (DI2)1 x digital input (24Vdc; sink/source) (DI3) |
| Digital outputs | 1 x digital output (rly. contact type) (ALM)1 x digital relay output (MBR)1 x digital output (rly. contact type) (INP) |
| Analog outputs | 1 x analog output (-10…+10Vdc) (MO1)1 x analog output (-10…+10Vdc) (MO2) |
| Dimensions | H380mm x W300mm x D328mm |
| Ambient air temperature for operation | 0…+55 °C |
| Ambient air temperature for storage | -20°C…+65 °C |
| Current consumption | 0.2A input |
| Power consumption(drive auxiliary power consumption) | 45 W |
| Technical compatibility with | drv. unitHA-LP series |
| Order code / Manufacturer SKU | MR-J3-DU55KB4 |
| Manufacturer product status | Discontinued |
