FR-E740-3.7K Mitsubishi Variable Frequency Inverter 3AC 400V 18A 200-240 V
Price:
negotiable
MOQ:
1
Delivery Time:
5-8 work days
Brand:
Mitsubishi
Product Description
FR-E740-3.7K Mitsubishi Variable Frequency Inverter 3AC 400V 18A 200-240 V
FR-E740-3.7K Description
The Mitsubishi FR-E740-3.7K is a high-performance, compact 3-phase variable frequency drive (VFD) from the FREQROL E700 series, designed for precise speed control of 3.7kW (5HP) induction motors. It integrates advanced sensorless vector control and V/F control technologies, delivering stable operation across a wide speed range with strong low-speed torque output. This inverter is engineered for industrial automation applications, offering reliable performance, rich control functions, and flexible communication capabilities, making it an ideal choice for various light-to-medium duty industrial equipment.
FR-E740-3.7K Features
- High-Precision Torque & Speed Control: Adopts optimized sensorless vector control, delivering 150% rated torque at 0.5Hz for smooth heavy-load startup; supports a 1:400 wide speed regulation range (0.2–400Hz).
- Strong Overload Capacity: Withstands 150% rated current for 60 seconds and 200% rated current for 3 seconds, ensuring stable operation under transient overloads.
- Rich Built-in Functions: Integrates PID closed-loop control, multi-speed operation (15 steps), slip compensation, droop control, and automatic restart after instantaneous power failure.
- Flexible Communication: Built-in RS-485 port supporting Modbus RTU protocol; compatible with optional Profibus communication modules for seamless system integration.
- Compact & Space-Saving Design: Dimensions of 90mm (W) × 210mm (H) × 180mm (D), weighing ~3.5kg; supports side-by-side installation to save cabinet space.
- Comprehensive Protection: Includes overcurrent, overvoltage, undervoltage, overheating, and short-circuit protection; features Safe Torque Off (STO) for enhanced operational safety.
- User-Friendly Operation: Equipped with a 4-digit LED display and built-in operation panel; supports parameter setting via FR Configurator software through USB connection.
FR-E740-3.7K Materials & Applications
Materials
- Housing: High-strength flame-retardant engineering plastic (UL94 V-0 rated) for excellent insulation and heat resistance.
- Internal Components: High-quality IGBT modules, electrolytic capacitors, and heat sinks for reliable long-term operation; forced air cooling with a built-in fan for efficient heat dissipation.
- Terminals: Nickel-plated copper terminals for good conductivity and corrosion resistance.
Applications
- Pump & Fan Systems: Constant pressure water supply, exhaust fans, and air conditioning units (energy-saving operation via PID control).
- Conveying Equipment: Belt conveyors, roller conveyors, and assembly lines (stable speed regulation and multi-speed switching).
- Machine Tools: Small lathes, grinders, and drilling machines (high-precision speed control).
- Food & Packaging Machinery: Mixers, filling machines, and packaging equipment (smooth operation and precise control).
- Textile & Printing Machinery: Looms, dyeing machines, and printing presses (stable low-speed operation and tension control).
FR-E740-3.7K Important Parameters
| Parameter | Specification |
|---|---|
| Model | FR-E740-3.7K |
| Series | FREQROL E700 |
| Applicable Motor Capacity | 3.7kW (5HP) |
| Rated Output Capacity | 9.0kVA |
| Rated Output Current | 9.5A |
| Overload Current Rating | 150% for 60s, 200% for 3s (inverse-time characteristic) |
| Input Power Supply | 3-phase AC 380–480V, 50/60Hz |
| Output Frequency Range | 0.2–400Hz |
| Control Method | Sensorless vector control, V/F control |
| Speed Regulation Range | 1:400 |
| Starting Torque | 150% rated torque at 0.5Hz |
| Protection Degree | IP20 (main unit) |
| Cooling Method | Forced air cooling |
| Dimensions (W×H×D) | 90mm × 210mm × 180mm |
| Weight | Approx. 3.5kg |
| Communication Interface | Built-in RS-485 (Modbus RTU), optional Profibus |
| Built-in Functions | PID control, multi-speed (15 steps), slip compensation, STO |
Liability:
WTL is not liable for any personal injury or property damage resulting from the use of this equipment. It is
buyer's responsibility as to the safe handling & operation of this equipment and to verify equipment is
compliance to their machinery.
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Company
Shenzhen Wisdomlong Technology CO.,LTD
Location
23E BlockB,Lushan Building，Chunfeng Road,Luohu District,Shenzhen,518001,China
Contact Person
Becky