Mitsubishi MR-J4W3-444B – AC Servo Drive (400W, 200-240Vac, IP20)

Key Technical Specifications

• Brand: Mitsubishi Electric
• Model: MR-J4W3-444B
• Product Line: MELSERVO MR-J4 Series
• Main Function: AC Servo Drive
• Supply Voltage: 200Vac to 240Vac
• Input Type: Single-phase (2P) or Three-phase (3P)
• Rated Current: 2.8A
• Current Consumption: 7.8A input
• Rated Active Power: 400W / 0.4kW
• Degree of Protection: IP20
• Weight: 5.00 lbs (2.27 kg)

Environmental Tolerances & Operating Conditions

• Ambient Temperature (Operation): 0°C to +55°C
• Ambient Temperature (Storage): -20°C to +65°C
• Protection Rating: IP20 – protects against solid objects over 12mm
• Noise Immunity: Complies with Mitsubishi MELSERVO MR-J4 standards
• Compatibility: Works with Mitsubishi servo motors from the MR-J4 family

Frequently Asked Questions (FAQ)

• Q: Can the MR-J4W3-444B run on single-phase power?
  A: Yes, this drive accepts both single-phase (2P) and three-phase (3P) input at 200-240Vac.
• Q: What is the difference between rated current (2.8A) and current consumption (7.8A)?
  A: 2.8A is the continuous rated output current. 7.8A is the maximum input current during peak operation.
• Q: Is this drive compatible with non-Mitsubishi motors?
  A: No, Mitsubishi designs the MR-J4W3-444B specifically for MELSERVO MR-J4 series servo motors.
• Q: What does IP20 protection mean for this drive?
  A: IP20 protects against solid objects larger than 12mm but offers no water protection. Keep it in a dry indoor panel.
• Q: Can I store this drive in a cold warehouse?
  A: Yes, the storage temperature range is -20°C to +65°C, suitable for most warehouses.

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