Product Description
Mitsubishi Electric MR-J4-40B-RJJ021 AC Servo Amplifier
The Mitsubishi Electric MR-J4-40B-RJJ021 is a high-performance AC servo amplifier from the industry-leading MELSERVO-J4 series. Designed for precise and dynamic motion control in advanced industrial automation systems, this drive delivers a reliable rated output power of 400W. It operates on a 3-phase 200-240V AC input and features an IP20 protection rating, making it perfectly suited for standard control cabinet installations. Manufactured in Japan, this servo amplifier meets stringent global safety and quality standards, carrying CE, cULus, KC, and UKCA certifications. It is engineered for maximum reliability, featuring robust thermal management for ambient temperatures up to 55°C and strict protective grounding compliance for safe operation.
Technical Specifications:
- Brand: Mitsubishi Electric
- Model: MR-J4-40B-RJJ021
- Product Series: MELSERVO-J4
- Rated Output Power: 400W
- Input Power: 3-Phase 200-240V AC, 8A/4.5A, 50/60Hz
- Output Voltage: 3-Phase 180V AC
- Max Surrounding Air Temperature: 55°C
- Protection Rating: IP20
- Certifications: CE, cULus LISTED, KC, UKCA
- Country of Origin: Made in Japan

Mitsubishi Electric MR-J4-40B-RJJ021 AC Servo Amplifier
Buy the Mitsubishi Electric MR-J4-40B-RJJ021 AC Servo Amplifier online. This genuine 400W, 3-phase 200-240V MELSERVO-J4 drive delivers precise industrial motion control with IP20 protection and global safety certifications (CE, UL, UKCA). In stock and ready to ship.



