Product Description

The Mitsubishi MR-J3-CR55K4 is a high-performance AC servo amplifier from the MELSERVO-J3 series, designed to deliver precise motor control in industrial automation systems. With a rated output power of 55 kW and a 3-phase 400 V AC supply, it supports a wide range of applications requiring robust and efficient motion control. This model is equipped with advanced tuning functions and is compatible with Mitsubishi's SSCNET III high-speed serial communication network, ensuring fast response and reliability. It also features a built-in regenerative resistor, contributing to energy efficiency and reducing the need for external components. Please note that this model has been discontinued by the manufacturer.

Technical Specifications

• Model: MR-J3-CR55K4
• Series: MELSERVO-J3
• Type: AC Servo Amplifier
• Output Power: 55 kW
• Input Voltage: 3-phase 400 V AC
• Frequency: 50/60 Hz
• Control Method: Sine-wave PWM and current control
• Communication Interface: SSCNET III
• Regenerative Resistor: Built-in
• Cooling Method: Forced air cooling
• Protection Features: Overload, overvoltage, undervoltage, overcurrent, and regenerative fault protection
• Ambient Temperature Range: 0–55°C (non-freezing)
• Weight: 22 kg
• Dimensions: Not specified
• Warranty: Varies by supplier; typically 2–3 years