Mitsubishi Electric

Mitsubishi Electric FR-A840-90K-1 FR-A800 Series Variable Frequency Drive

SKU FR-A840-90K-1

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Mitsubishi Electric

  • Product No.: FR-A840-90K-1

  • Country of origin:United States

  • Product Type: Variable Frequency Drives

  • Payment: T/T, Western Union

  • Weight: 56000g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Designed for heavy-duty industrial applications, the FR-A840-90K-1 variable frequency drive provides exceptional motor control and torque performance. Part of the renowned Mitsubishi Electric FR-A800 Series, this high-capacity inverter module is engineered to regulate three-phase asynchronous and synchronous motors up to 90 kW. It features an integrated FM terminal configuration, enabling high-speed pulse train outputs for precise external monitoring of critical operational parameters.

The unit's advanced vector control algorithms ensure optimal torque delivery even at zero speed, making it highly suitable for demanding applications in material handling, fan and pump control, and complex machinery. Built-in serial communication ports allow for straightforward integration into existing PLC and DCS network architectures without requiring auxiliary adapters.

Features

  • Advanced Real Sensorless Vector Control (RSVC) and Vector Control modes for precise speed and torque regulation.
  • Integrated FM (frequency modulation) control terminal for pulse train monitoring of drive status.
  • Robust overload capacity designed to handle extreme load fluctuations in heavy-duty cycles.
  • Built-in RS-485, RS-422, and RS-232 communication interfaces as standard.
  • Comprehensive diagnostic functions and lifetime monitoring for cooling fans and internal capacitors.

Applications

  • Municipal and industrial water treatment pumps and aeration blowers.
  • High-capacity material handling conveyors, cranes, and hoisting machinery.
  • Extruders, mixers, and rotary kilns in chemical and raw material processing.
  • Industrial HVAC compressor systems and ventilation arrays.

Technical Specifications

Manufacturer Mitsubishi Electric
Part Number / Model FR-A840-90K-1
Series FR-A800
Applicable Motor Capacity 90 kW
Input Voltage Class 400 V AC Class
Input Rated Voltage / Frequency Three-phase 380 to 500 V AC, 50/60 Hz
Output Rated Voltage Three-phase 380 to 500 V AC
Output Capacity 137 kVA
Output Rated Current 180 A
Communication Protocols RS-232, RS-422, RS-485
Control Terminal Interface FM terminal model (pulse train output)
Height 595 mm
Width 465 mm
Depth 300 mm
Weight 56 kg
Environmental Operating Temperature -10 to 50 degC (non-freezing)

Installation Guidelines

To ensure optimal cooling performance and long-term reliability, mount the drive vertically on a flat, non-combustible surface. Maintain a minimum clearance of 100 mm above and below the unit, and 50 mm on both sides to allow adequate airflow. Verify that the ambient operating environment remains between -10 and 50 degC and is free from conductive dust, corrosive gases, and excessive moisture. Ensure a dedicated, low-impedance protective earth (PE) ground connection is established prior to energizing the main power circuits.

Compliance and Certifications

  • CE marked for low-voltage and EMC directives
  • UL and cUL Listed
  • RoHS Compliant (6/6 substances)

FAQ

What is the function of the FM terminal on the FR-A840-90K-1?

The FM terminal provides a high-speed pulse train output (frequency modulation) for monitoring system parameters such as output frequency, motor speed, or output current using external indicators or control devices.

Can this variable frequency drive be used for constant torque applications?

Yes, the FR-A840-90K-1 features advanced vector control algorithms that make it highly suited for both variable torque (pumps, fans) and demanding constant torque applications (extruders, conveyors).

What are the dimensions and mounting weight of this drive?

The module has a height of 595 mm, a width of 465 mm, a depth of 300 mm, and weighs approximately 56 kg.

View all FAQs →

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Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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