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    Apter Power checks current FR-D740-3.7K-CHT availability and phase-out timing at quotation.

FR-D740-3.7K-CHT

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Mitsubishi Electric FR-D740-3.7K-CHT is a 3.7 kW, three-phase 400 V class compact inverter for variable-speed industrial motor control.
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Technical specifications for FR-D740-3.7K-CHT

  • Manufacturer:
    Mitsubishi
  • Part Number:
    FR-D740-3.7K-CHT
  • Product Family:
    Mitsubishi
  • Product Type:
    FR-D700 Series Compact Inverter
  • Stock:
    1
  • Series:
    FR-D700
  • Rated Motor Capacity:
    3.7 kW
  • Voltage Class:
    Three-phase 400 V class
  • Rated Output Capacity:
    6.1 kVA
  • Rated Output Current:
    8.0 A
  • Input Voltage and Frequency:
    Three-phase 380 to 480 VAC, 50/60 Hz
  • Permissible AC Voltage Range:
    325 to 528 VAC
  • Power Supply Capacity:
    9.5 kVA
  • Overload Rating:
    150% for 60 s; 200% for 0.5 s
  • Protective Structure:
    IP20 enclosed type
  • Communication:
    Mitsubishi inverter protocol and MODBUS RTU
  • Regional Specification:
    CHT
  • Weight:
    1.5 kg
  • Estimated shipping dimensions:
    10.8 x 12.8 x 16.55 cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Drive Selection Commissioning Service Planning Product Applications

Features:

  • Compact motor control: The drive combines speed regulation, operator setup and protective functions in the FR-D700 enclosure.
  • Defined CHT configuration: The suffix identifies the Chinese-market terminal logic and factory defaults that must be preserved during replacement.
  • Service transition: Mitsubishi’s announced phase-out makes parameter backup and replacement planning part of a responsible maintenance decision.
FR-D740-3.7K-CHT is selected where an installed machine requires the same FR-D700 power class, regional configuration and terminal behavior.

Its local setting dial and supported serial protocols allow commissioning from the panel or through the machine’s established communication path.

A successful changeout confirms rotation, current, acceleration, stop behavior and external interlocks before the drive is returned to automatic operation.

Apter Power can help confirm the Mitsubishi Electric FR-D740-3.7K-CHT FR-D700 Series Compact Inverter, CHT configuration and documented replacement scope before quotation.
Mitsubishi Electric FR-D740-3.7K-CHT FR-D700 Series Compact Inverter Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Motor match: Confirm the motor nameplate and duty fit the drive power and current class before selection.
  • Regional code: Preserve the CHT suffix because terminal logic and factory settings vary across regional versions.
  • Braking duty: Review deceleration energy and the need for approved braking hardware instead of assuming the internal drive can absorb repeated regeneration.
  • Control method: Match the installed start, speed-reference and communication scheme to the machine drawings.
  • Parameter record: Export or photograph the original settings before disconnecting the installed inverter.
  • Motor isolation: Prove the machine safe and verify wiring against the terminal diagram before applying power.
  • Direction check: Test rotation and low-speed response under controlled conditions before coupling the process load.
  • Stop verification: Confirm normal, coast and emergency stopping behavior with the actual machine interlocks.
  • Cooling path: Keep ventilation clear and inspect the fan on capacities that use forced-air cooling.
  • Fault evidence: Record alarm history, load condition and measured supply before replacing a drive.
  • Spare strategy: Retain a verified parameter backup with the spare because the FR-D700 family is in an announced phase-out period.
  • Migration control: Treat any successor platform as an engineering conversion rather than an automatic drop-in replacement.
  • Conveyors: Regulates motor speed and acceleration where the existing machine uses an FR-D700 control scheme.
  • Pumps and fans: Adjusts motor output to process demand while retaining documented protective settings.
  • Packaging equipment: Restores a compact inverter channel with the same regional configuration.
  • Legacy machine support: Maintains installed FR-D700 assets while a controlled modernization plan is prepared.
Description
FR-D740-3.7K-CHT provides compact variable-frequency control for a three-phase motor in the Mitsubishi FR-D700 platform, with the CHT suffix identifying the Chinese-market specification.

The built-in operating panel on FR-D740-3.7K-CHT supports local setup and monitoring, while Mitsubishi inverter protocol and MODBUS RTU provide a defined route for controller integration.

Before replacing an installed drive with FR-D740-3.7K-CHT, preserve the motor data, control logic, acceleration profile and terminal assignment so commissioning restores the machine behavior rather than only energizing the motor.
Alternative Names
FRD7403.7KCHT FR D740 3.7K CHT
Technical notes
FR-D740-3.7K-CHT is entering Mitsubishi’s announced FR-D700 phase-out window, although orders remain scheduled through January 2027. Treat replacement as both a commissioning and obsolescence-planning task: back up parameters, verify the CHT terminal logic, confirm motor current and braking duty, and document a migration path before the installed drive becomes unavailable.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
A maintenance engineer has an FR-D740-3.7K-CHT with no parameter backup. What should happen before removal?
Record every accessible parameter, terminal connection, alarm and motor nameplate value. If the drive is still operable, also document direction, speed reference and stopping behavior.
A supplier offers a non-CHT FR-D740 unit for FR-D740-3.7K-CHT. Is the matching power rating enough?
No. The regional suffix affects terminal logic and defaults. Require engineering review of the exact version and machine wiring before approving any substitution.
FR-D740-3.7K-CHT trips during rapid deceleration. Should the inverter simply be replaced?
First evaluate regenerative energy, braking hardware, load inertia and the recorded alarm. Replacing the drive without correcting the braking duty can reproduce the trip.
The motor controlled by FR-D740-3.7K-CHT runs in the wrong direction after replacement. What is the safe response?
Stop commissioning, isolate power and compare output phase wiring and direction-command logic with the original records before another powered test.
Can FR-D740-3.7K-CHT be treated as a long-term active platform because orders are still accepted?
No. Mitsubishi has announced the FR-D700 phase-out schedule. Use current availability for planned maintenance while preparing a validated migration strategy.
A new FR-D740-3.7K-CHT powers up but the PLC cannot command it. Which evidence should be compared?
Check control mode, terminal assignments, serial protocol, address, baud rate and the restored parameter set against the machine program and wiring drawings.

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