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MR-J3-20A Mitsubishi

Original price $330.00 - Original price $375.00
Original price
$330.00
$330.00 - $375.00
Current price $330.00
Surplus - Tested (With Warranty)
Need a Specific Revision?
$330.00
2 in stock
New / Open-Box Surplus
Need a Specific Revision?
$375.00
5 in stock
Ships today if ordered by 1 PM CST
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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The MR-J3-20A is part of Mitsubishi's MELSERVO-J3-A family of general-purpose AC servo amplifiers. It functions as a drive module to control servo motors via sine-wave PWM current control and encoder feedback. Designed for industrial motion control, it is used in machine tools, pick-and-place systems, packaging machinery, and indexing devices. As a legacy model (20 A class), MR-J3-20A provides advance tuning and servo protection functions while integrating with controllers using pulse or analog command signals.

Best Suited For

  • Medium-power servo control (20 A class)
  • Replacement in existing MR-J3-based systems
  • Integration with pulse or analog command sources
  • Machine tool and automation motion applications
Rated current class
20 A
Control method
Sine-wave PWM / current control
Interface power supply
24 V DC ±10 % (0.3 A)
Communication
USB (Configurator2), RS-422/RS-485
Encoder resolution
131072 pulses/rev

Technical Specifications

I/O & Electrical

Main input voltage
3-phase or 1-phase 200-240 VAC, 50/60 Hz
Permissible voltage fluctuation
170-264 VAC
Interface power supply
24 V DC ±10 %, 0.3 A

Communication & Power

Control method
Sine-wave PWM / current control
USB communication
Yes (Configurator2 compatible)
Fieldbus ports
RS-422/RS-485

Physical & Environmental

Ambient operating temperature
0 °C to 55 °C (non-freezing)
Storage temperature
-20 °C to 65 °C (non-freezing)
Ambient humidity
Up to 90 % RH (non-condensing)

Certifications

UL 508CCSA C22.2 No. 274

1-Year Warranty

Every tested unit is backed by our free 1-year PLC Department warranty, direct from us.

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Free ground shipping. Orders by 1 PM CST ship same-day, with overnight available.

USA Stock

Sourced and shipped from Texas, USA. Never anonymous overseas marketplace stock.

30-Day Returns

Hassle-free RMA. If the part is not right for your application, send it back within 30 days.

Reseller Options

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

Visit RockwellAutomation.com

Must Read: Disclaimer

PLC Department sells surplus and refurbished industrial automation products, including but not limited to programmable logic controllers (PLCs), which are sourced exclusively through independent third-party channels. PLC Department is not an authorized distributor, reseller, or representative of any manufacturer listed on this website, including Rockwell Automation or its Allen-Bradley brand. All product warranties, where offered, are provided solely by PLC Department and not by the original manufacturer.

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