Mitsubishi Electric FR-A840-0.4K-1 FR-A800 Series Variable Frequency Drive

SKU FR-A840-0.4K-1

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12-month warranty
Free returns within 30 days

Manufacturer: Mitsubishi Electric
Product No.: FR-A840-0.4K-1
Country of origin:United States
Product Type: Variable Frequency Drives
Payment: T/T, Western Union
Weight: 4000g
Shipping port: Xiamen
Warranty: 12 months

Description

Designed for precise speed and torque control in demanding industrial environments, the FR-A840-0.4K-1 represents the premium three-phase variable frequency drive (VFD) class within the Mitsubishi Electric FR-A800 family. This drive is engineered to deliver high-performance vector control and outstanding real-time speed response for both standard induction motors and permanent magnet motors.

Operating on a three-phase input supply of 380V to 500V, this compact unit provides a rated output of 0.4 kW. Built-in serial communication protocols, including RS-485, RS-422, and RS-232, facilitate direct integration into factory automation systems, PLCs, and distributed control networks without requiring additional interface cards.

Features

Advanced magnetic flux vector control for precise speed regulation and high starting torque.
Auto-tuning capabilities for both induction motors (IM) and permanent magnet (PM) motors.
Integrated RS-485, RS-422, and RS-232 communication interfaces for flexible system integration.
Inherent energy-saving control algorithms that optimize excitation current based on motor load.
Comprehensive protective functions including overcurrent, overvoltage, undervoltage, and thermal overload tracking.

Applications

Material handling systems, conveyors, and sorting lines.
Water and wastewater pumps, industrial fans, and blowers.
Extruders, mixers, and industrial processing machinery.
Gantry cranes, hoist mechanisms, and high-precision positioning systems.

Technical Specifications

Manufacturer	Mitsubishi Electric
Model Number	FR-A840-0.4K-1
Series	FR-A800
Applicable Motor Capacity	0.4 kW
Input Voltage Class	Three-phase 400 V
Rated Input Voltage	Three-phase 380 to 500 V (50 Hz / 60 Hz)
Output Capacity	1.1 kVA
Output Rated Current	1.5 A
Output Specification	Three-Phase
External Communications	RS-232, RS-422, RS-485
Width	150 mm
Height	260 mm
Depth	140 mm
Shipping Weight	4 kg

Installation Guidelines

To ensure optimal heat dissipation and reliable operation, observe the following engineering instructions:

Mounting Position: Install the drive vertically on a flat, non-flammable surface such as a metal panel.
Clearances: Maintain a minimum clearance of 50 mm above and below the drive unit, and at least 10 mm on both sides for adequate airflow.
Wiring: Always connect the AC power source to the input terminals (R/L1, S/L2, T/L3) and the motor leads to the output terminals (U, V, W). Never connect AC power directly to the output terminals as this will cause catastrophic damage.
Grounding: Use a dedicated ground terminal with low electrical resistance to prevent electrical noise and ensure personnel safety.

Compliance and Certifications

CE Marked
UL Listed
cUL Listed
RoHS Compliant (6)

FAQ

What is the rated motor capacity for the FR-A840-0.4K-1?

The FR-A840-0.4K-1 is rated for an applicable motor capacity of 0.4 kW.

What input voltage range does this variable frequency drive support?

It supports a three-phase input voltage range of 380 V to 500 V at 50/60 Hz.

Which communication interfaces are built into this drive?

This drive includes RS-232, RS-422, and RS-485 serial communication interfaces as standard.

Can this drive control permanent magnet (PM) motors?

Yes, the FR-A840-0.4K-1 features auto-tuning and control algorithms for both standard induction motors (IM) and permanent magnet (PM) motors.

What are the physical dimensions of the drive?

The dimensions are 260 mm in height, 150 mm in width, and 140 mm in depth, with a shipping weight of approximately 4 kg.

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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

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