MR-J4-40B-RJ020 | Mitsubishi MELSERVO-J4 AC Servo Drive (0.4 kW, 200–240 VAC
MR-J4-40B-RJ020 | Mitsubishi MELSERVO-J4 AC Servo Drive (0.4 kW, 200–240 VAC
MR-J4-40B-RJ020 | Mitsubishi MELSERVO-J4 AC Servo Drive (0.4 kW, 200–240 VAC
    MR-J4-40B-RJ020 | Mitsubishi MELSERVO-J4 AC Servo Drive (0.4 kW, 200–240 VAC
MR-J4-40B-RJ020 | Mitsubishi MELSERVO-J4 AC Servo Drive (0.4 kW, 200–240 VAC

MR-J4-40B-RJ020 | Mitsubishi MELSERVO-J4 AC Servo Drive (0.4 kW, 200–240 VAC

Part #: MR-J4-40B-RJ020 Manufactured by: Mitsubishi
Regular price
$1,019.00
Sale price
$1,019.00
Regular price
4 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
Digital AC-Servo Amplifier MR-J4-B, for Motor Power 400 W, MR-J2S comp.
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warranty
IQElectro 2-Year Warranty
Warranty for Product #: MR-J4-40B-RJ020
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Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: MR-J4-40B-RJ020

Description / Specifications

Description

The Mitsubishi MR-J4-40B-RJ020 is a high-performance MELSERVO-J4 AC servo drive engineered for precise motion control in industrial automation systems. This model delivers a 0.4 kW rated output with integrated dynamic braking and SSCNET III/H networking for fast and reliable servo communication.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Mitsubishi
Category Servo Products
Part Number MR-J4-40B-RJ020
Subcategory Servo Drive/Servo Control
Series MELSERVO-J4
Type MR-J4
Rated Capacity 0.4 kW (400 W)
Rated Current 2.8 A
Number of Axes 1
Power Supply (Single-Phase) 200–240 VAC
Power Supply (Three-Phase) 200–240 VAC
DC Input Range 283–340 VDC
Dynamic Brake Built-in
Regenerative Resistor Built-in
Communication Interface SSCNET III/H
Compatibility Conversion unit SSCNET for MR-J2S-[]B
Degree of Protection IP20
Ambient Rating 0 to +55 °C
Type of Network Single-phase (2P), 3-phase (3P), or DC input
Dimensions 168 mm H × 40 mm W × 170 mm D
Mounting Panel/Cabinet mount
Function AC motion control and servo amplification

 

 

Information About MR-J4-40B-RJ020

The MR-J4-40B-RJ020 is part of Mitsubishi’s MELSERVO-J4 series, a line of advanced servo drives designed for high-speed, high-accuracy industrial motion systems. This model provides a 0.4 kW output and supports both single-phase and three-phase 200–240 VAC supplies, giving designers flexibility in mixed-power environments. Its integrated dynamic brake and built-in regenerative resistor enhance stopping performance and energy handling during rapid deceleration, improving system stability and safety. Featuring SSCNET III/H communication, the drive offers high-speed deterministic networking and is fully compatible with MELSERVO motion controllers and MR-J2S-[]B conversion units. Built to IP20 standards with a compact footprint, the unit is suitable for dense control cabinets and industrial environments requiring dependable motion performance.

Key Features:

  • 0.4 kW servo output capability: provides precise control for single-axis applications requiring fast positioning and stable motion profiles.
  • Multi-source power input: accepts 200–240 VAC single- or three-phase or 283–340 VDC, enabling flexible installation in diverse automation systems.
  • Built-in dynamic brake and regenerative resistor: improves deceleration response and energy dissipation during high-speed or high-inertia operations.
  • SSCNET III/H high-speed communication: ensures synchronized, low-latency servo control across motion networks with deterministic performance.
  • Compact IP20-rated enclosure: supports safe mounting inside control cabinets with protection against solid contaminants in industrial settings.
  • Compatibility with MR-J2S-[]B systems: allows integration into existing Mitsubishi servo architectures using conversion units.
  • 0–55 °C operating range: supports reliable operation in warm industrial environments without additional cooling equipment.
  • Slim vertical form factor: occupies minimal panel space at only 40 mm width, facilitating dense multi-axis motion system layouts.

The MR-J4-40B-RJ020 delivers the reliability and precision required for advanced servo motion control, high-speed automation, and responsive machine performance in modern industrial systems.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description

The Mitsubishi MR-J4-40B-RJ020 is a high-performance MELSERVO-J4 AC servo drive engineered for precise motion control in industrial automation systems. This model delivers a 0.4 kW rated output with integrated dynamic braking and SSCNET III/H networking for fast and reliable servo communication.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Mitsubishi
Category Servo Products
Part Number MR-J4-40B-RJ020
Subcategory Servo Drive/Servo Control
Series MELSERVO-J4
Type MR-J4
Rated Capacity 0.4 kW (400 W)
Rated Current 2.8 A
Number of Axes 1
Power Supply (Single-Phase) 200–240 VAC
Power Supply (Three-Phase) 200–240 VAC
DC Input Range 283–340 VDC
Dynamic Brake Built-in
Regenerative Resistor Built-in
Communication Interface SSCNET III/H
Compatibility Conversion unit SSCNET for MR-J2S-[]B
Degree of Protection IP20
Ambient Rating 0 to +55 °C
Type of Network Single-phase (2P), 3-phase (3P), or DC input
Dimensions 168 mm H × 40 mm W × 170 mm D
Mounting Panel/Cabinet mount
Function AC motion control and servo amplification

 

 

Information About MR-J4-40B-RJ020

The MR-J4-40B-RJ020 is part of Mitsubishi’s MELSERVO-J4 series, a line of advanced servo drives designed for high-speed, high-accuracy industrial motion systems. This model provides a 0.4 kW output and supports both single-phase and three-phase 200–240 VAC supplies, giving designers flexibility in mixed-power environments. Its integrated dynamic brake and built-in regenerative resistor enhance stopping performance and energy handling during rapid deceleration, improving system stability and safety. Featuring SSCNET III/H communication, the drive offers high-speed deterministic networking and is fully compatible with MELSERVO motion controllers and MR-J2S-[]B conversion units. Built to IP20 standards with a compact footprint, the unit is suitable for dense control cabinets and industrial environments requiring dependable motion performance.

Key Features:

  • 0.4 kW servo output capability: provides precise control for single-axis applications requiring fast positioning and stable motion profiles.
  • Multi-source power input: accepts 200–240 VAC single- or three-phase or 283–340 VDC, enabling flexible installation in diverse automation systems.
  • Built-in dynamic brake and regenerative resistor: improves deceleration response and energy dissipation during high-speed or high-inertia operations.
  • SSCNET III/H high-speed communication: ensures synchronized, low-latency servo control across motion networks with deterministic performance.
  • Compact IP20-rated enclosure: supports safe mounting inside control cabinets with protection against solid contaminants in industrial settings.
  • Compatibility with MR-J2S-[]B systems: allows integration into existing Mitsubishi servo architectures using conversion units.
  • 0–55 °C operating range: supports reliable operation in warm industrial environments without additional cooling equipment.
  • Slim vertical form factor: occupies minimal panel space at only 40 mm width, facilitating dense multi-axis motion system layouts.

The MR-J4-40B-RJ020 delivers the reliability and precision required for advanced servo motion control, high-speed automation, and responsive machine performance in modern industrial systems.

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