MPN: MR-J4-700A — industrial control spare part, in stock at TGK Parts.
The MR-J4-700A is a Mitsubishi MR-J4 series servo amplifier rated 7 kW — used with HG-KN/HG-SR servo motors on CNC machines, packaging lines and robotics. The MR-J4 family supports SSCNET III/H for high-speed multi-axis control.
Typical failures involve the main circuit (IGBT/IPM) and the encoder interface board. We supply tested units and individual boards; send your serial number for exact part identification.
| MPN | MR-J4-700A |
|---|---|
| Type | Servo amplifier, 7 kW |
| Family | Mitsubishi MR-J4 |
| Communication | SSCNET III/H |
| Motor feedback | Encoder (HG series compatible) |
| Supply | 3-phase 200–240 V AC |
| Condition | New / tested refurbished |
| Warranty | 12 months |
Replacement and spare part for industrial automation equipment — production lines, CNC machines, packaging machinery, textile machinery, printing equipment and more.
Yes — for many MR-J4 faults we supply the specific board (main circuit, control or encoder board) instead of a full unit.
Yes — servo parameters must match the motor and machine. We can pre-load if you send the original data.
Yes — suffixes define function options (e.g. -A base, -RJ with STO). Match your unit exactly.