Mitsubishi Electric FR-A840-0.75K-1 FR-A800 Series Variable Frequency Drive Inverter

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Manufacturer: Mitsubishi Electric
Product No.: FR-A840-0.75K-1
Country of origin:United States
Product Type: Variable Frequency Drives
Payment: T/T, Western Union
Weight: 4000g
Shipping port: Xiamen
Warranty: 12 months

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Description

Designed for high-performance motor control, the FR-A840-0.75K-1 represents Mitsubishi Electric's premier engineering in vector control and variable frequency drive technology. This three-phase inverter is engineered to deliver precise speed and torque control for asynchronous and permanent magnet motors, matching demanding industrial requirements. Operating on a three-phase 400 V class input, it provides a stable three-phase 380 to 500 V output tailored for 0.75 kW motor operations.

Integrating advanced communication interfaces such as RS-232, RS-422, and RS-485 as standard, this drive facilitates seamless integration with factory automation networks and PLCs. The rugged design and thermal management systems embedded within the FR-A840-0.75K-1 ensure continuous runtime in harsh industrial environments, making it a reliable component in modernized motion control architectures.

Features

Real-time sensorless vector control capabilities for advanced speed precision and torque response.
Integrated multi-protocol serial communication interfaces including RS-232, RS-422, and RS-485.
Compact physical footprint optimizing control cabinet space efficiency.
High overload capacity suitable for demanding startup torques and heavy-duty industrial machinery.
Designed for operational compatibility with energy-saving PM (Permanent Magnet) synchronous motors.

Applications

Conveyor systems and high-throughput material handling lines.
Pumps, industrial fans, and blowers in water treatment and HVAC facilities.
Extruders, mixers, and industrial centrifuges.
Machine tool spindles and automated positioning systems.

Technical Specifications

Manufacturer	Mitsubishi Electric
Part Number / Model	FR-A840-0.75K-1
Series	FR-A800 Series
Applicable Motor Capacity	0.75 kW
Input Voltage Class	Three-phase 400 V
Output Rated Power Supply	Three-phase 380 to 500 V
Output Capacity	1.9 kVA
Output Rated Current	2.5 A
External Communications	RS-232, RS-422, RS-485
Width	150 mm
Height	260 mm
Depth	140 mm
Shipping Weight	4.0 kg

Connections and Interfaces

Terminal Group	Function Description
R/L1, S/L2, T/L3	Three-phase AC power input connection points
U, V, W	Three-phase AC variable output terminals directly to motor
TXD / RXD	Serial communication lines for RS-485, RS-422, and RS-232 control

Installation Guidelines

Mounting: Mount the VFD vertically on a flat, non-flammable vertical surface to ensure optimal thermal dissipation. Allow at least 50 mm clearance above and below the unit for airflow.
Grounding: Ensure low-impedance grounding of the drive frame to the main system ground to prevent electromagnetic interference (EMI).
Shielding: Use shielded motor cables and ground the shield at both the drive and motor ends to comply with local electromagnetic compatibility guidelines.
Environmental Control: Keep ambient temperatures within -10 to 50 degC (non-freezing) and relative humidity below 95% non-condensing.

Compliance and Certifications

CE (European Conformity)
UL Listed
cUL Listed

Key Features:

#FR-A800 Series #Variable Frequency Drives

What is the rated motor capacity for the FR-A840-0.75K-1?

This inverter is rated for an applicable motor capacity of 0.75 kW.

What communication interfaces are integrated into this VFD?

The drive comes equipped with built-in RS-232, RS-422, and RS-485 serial communication interfaces.

What are the physical dimensions and weight of the drive?

The unit measures 150 mm in width, 260 mm in height, and 140 mm in depth, with a shipping weight of approximately 4.0 kg.

What is the voltage rating for this Mitsubishi inverter?

It is designed for a three-phase 400 V input class and provides a three-phase output of 380 to 500 V.

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

Mitsubishi Electric FR-A840-0.75K-1 FR-A800 Series Variable Frequency Drive Inverter