Mitsubishi Electric

Mitsubishi Electric FR-A840-00310-2-60 FR-A800 Variable Frequency Drive Inverter

SKU FR-A840-00310-2-60

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

  • Product No.: FR-A840-00310-2-60

  • Country of origin:United States

  • Product Type: Variable Frequency Drives

  • Payment: T/T, Western Union

  • Weight: 8300g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Delivering exceptional motor control and energy efficiency in high-demand environments, the Mitsubishi Electric FR-A840-00310-2-60 is a three-phase, 400V class variable frequency drive engineered for the FR-A800 Series control platform. Featuring advanced vector control algorithms and a robust IP20 protective structure, this inverter is designed to drive induction and permanent magnet motors with high precision. This specific model features factory-applied conformal circuit board coating (suffix -60) to protect internal electronics against dust, humidity, and corrosive atmospheric contaminants, making it highly reliable for heavy industrial environments.

Features

  • Conformal PCB Coating (-60): Standard circuit boards are coated to guard against harsh environmental ingress, extending operational life in demanding conditions.
  • Real Sensorless Vector Control: Achieves high torque at zero speed and precise speed control without requiring physical encoder feedback.
  • Dual Overload Ratings: Supports Super Light Duty (SLD) and standard duty cycles to optimize performance and sizing across different load profiles.
  • Built-in Safety Function: Features integrated dual-channel safety emergency stop inputs (SIL2/PLd) to simplify compliance with machinery safety directives.
  • Energy Optimization: Dynamic auto-tuning and energy-saving algorithms significantly reduce power consumption under variable load conditions.

Applications

  • Centrifugal Pumps and Fans: Ideal for variable torque municipal water systems, cooling towers, and industrial ventilation.
  • Material Handling: Provides smooth acceleration and deceleration curves for industrial conveyors, hoists, and positioning tables.
  • Extruders and Mixers: High starting torque capabilities handle heavy-duty startup loads easily.
  • Machine Tool Spindles: High-speed precision control suited for metalworking and wood-processing machinery.

Technical Specifications Table

Parameter Specification Value
Manufacturer Mitsubishi Electric
Model Number FR-A840-00310-2-60
Product Series FR-A800
Voltage Class 400 V Class (Three-Phase)
Rated Input AC Voltage 380 to 500 V AC, 50Hz / 60Hz
Permissible AC Voltage Fluctuation 323 to 550 V AC, 50Hz / 60Hz
Permissible Frequency Fluctuation +/-5%
SLD Rated Inverter Current 31.0 A
Type Designation -2 (CA Type)
PCB Construction With circuit board coating (-60), without plated copper conductor
Cooling System Forced Air Cooling
Protective Structure IP20 (Enclosed Type)
Ambient Operating Temperature -10 to 50 degC (LD/ND/HD ratings), -10 to 40 degC (SLD rating)
Net Weight 8.3 kg
Shipping Weight (Calculated) 11.0 kg

Connections and Interfaces

Terminal Group Function / Circuit Assignment
R/L1, S/L2, T/L3 Three-phase AC power input connections
U, V, W Three-phase output terminals to induction or PM motor
P/+, PR, N/- Brake resistor and DC link connections (external brake options)
S1, S2, SC Safety stop input circuit terminals (dual channel safety cut-off)
Control Terminals Programmable digital inputs, analog frequency setting, and relay outputs

Empirical Engineering Insights

Alternative Models & Compatibility

The FR-A840-00310-2-60 belongs to the premium FR-A800 generation, directly succeeding older FR-A740 models. Parameter migration can be executed smoothly using the FR Configurator2 software tool. Note that because of changes in footprint dimensions and terminal spacing between generation series, physical cabinet layout verification is required when retrofitting existing backplates.

Application Pitfalls & Engineering Notes

When utilizing the drive in its Super Light Duty (SLD) rating of 31.0A for centrifugal loads, the permissible ambient temperature drops to 40 degC without derating. If the drive is integrated inside a tightly sealed NEMA/IP cabinet where temperatures can reach 50 degC, you must calculate thermal dissipation carefully or utilize the standard Light Duty (LD) or Normal Duty (ND) current curves to avoid overtemperature trip alarms (such as E.THT).

Commissioning & Wiring Tips

To prevent common EMC interference issues with nearby instrumentation, ensure motor cables are shielded and terminated with low-impedance earthing clamps at both the drive ground plate and the motor terminal box. Always keep the safety bypass jumpers intact across S1-PC and S2-PC if safety circuits are not connected; removing these jumpers without a dedicated safety relay will trigger an immediate E.SAF fault, halting the drive operation.

Installation Guidelines

CRITICAL WARNING

Disconnect all electrical input lines and verify zero voltage on the DC bus link terminals (P/+ to N/-) using a verified voltmeter before performing any wiring, terminal changes, or internal component replacements. The internal capacitors store high-voltage charges that require up to 10 minutes to safely bleed down after primary de-energization.

1

Mount the VFD vertically on a flat, non-flammable vertical backplate to optimize convection and airflow paths through the heat sink.

2

Maintain safe spacing of at least 50mm on each side and 100mm above and below the unit to ensure adequate forced air intake and discharge pathways.

3

Ensure the protective earth (PE) grounding conductor is securely connected to the designated ground lug, using the thickest gauge copper wire permissible under local code requirements.

FAQ

What is the primary benefit of the -60 suffix on this Mitsubishi inverter?

The -60 suffix denotes that the control and power circuit boards feature an extra conformal coating layer. This coating enhances protection against humidity, ambient dust, and non-conductive chemical elements found in industrial atmospheres.

Can this drive be operated on single-phase supply lines?

No, the FR-A840 series is built exclusively for three-phase AC power input (380 to 500V, 50Hz/60Hz). Operating it on a single-phase supply can cause permanent damage or immediate input phase loss faults.

What is the current rating under Super Light Duty (SLD) mode?

In Super Light Duty (SLD) mode, the rated current is 31.0A. Under normal duty configurations, the rated current limits are reduced to safeguard the power modules under heavy overload cycles.

Does this unit include a built-in EMC filter?

The -2 designation indicates a CA type, which typically incorporates a built-in EMC filter compliant with EN 61800-3 Category C3. This helps suppress high-frequency electrical emissions without needing external filtering components.

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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