Mitsubishi MR-J3-30A Servo Drive | 300W Compact Amplifier
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Mitsubishi MR-J3-30A Compact Servo Amplifier
Power small-scale automation with precision and flexibility. The Mitsubishi MR-J3-30A is a versatile 300W servo drive suitable for both single and three-phase power systems.
- Compact 300 Watt (0.3 kW) output for small motors.
- Flexible 200-230V AC, 1-phase or 3-phase input power.
- Built-in dynamic brake for controlled stopping.
- Fanless self-cooling design for quiet, reliable operation.
Technical Specifications
Brand & Model: Mitsubishi MR-J3-30A
Series: MELSERVO MR-J3
Rated Output Power: 300 Watts
Supply Voltage: 200-230V AC (Permissible: 170-253V AC)
Phase Input: 1-Phase or 3-Phase
Input Frequency: 50/60 Hz
Control Method: Sine Wave PWM & Current Control
Braking: Built-in Dynamic Brake
Logic Power: 24V DC, 300 mA
Inrush Current: Main Circuit: 30A, Control: 20-30A
Cooling: Self-Cooling (Natural Convection)
Operating Temperature: 0°C to 55°C (non-freezing)
Storage Temperature: -20°C to 65°C
Enclosure: IP00 (Open Chassis)
Expert FAQs
What is a typical use for a 300W servo drive?
The MR-J3-30A is perfect for small robotics, lab automation, light-duty conveyor positioning, valve actuators, or small rotary tables in assembly machines.
Why is the flexible phase input useful?
It allows the same drive to be used in different facilities. A small workshop with only single-phase power can use it, as well as a larger factory with three-phase power.
How does the self-cooling (fanless) design benefit me?
It eliminates fan noise and removes a common point of failure. This makes it ideal for quiet environments or applications where maintenance is difficult.
What do the high inrush currents mean for my power supply?
Your circuit breaker or fuse for the main power must be sized to handle the brief 30A surge when the drive is first turned on, even though running current is much lower.
Can I use this for a simple speed control application?
Yes. While capable of full servo control, it can also be configured for basic speed control using its internal modes, making it a versatile choice for various simple to complex tasks.
Shipping & Warranty
We ship worldwide via FedEx, UPS, and DHL. This product is covered by a standard 12-month warranty.
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