Inverter Drives

An inverter drive (also known as variable frequency drives or VFD) is a type of variable speed drive that allows you as the user to adjust the speed or output. Inverter drives allow AC power to be converted to DC providing the user with precise control. Inverter drives are also ideal for helping to reduce waste or loss of electrical energy in a range of applications.

How do inverter drives work?

Inverter drives are controlled by inputting specific frequencies or parameters into the device. This allows for greater control over your machinery and operations with more precision. Inverter drives are situated between an electrical supply and a motor, with the inverter allowing the power to be regulated to suit the application.

Features and Benefits

  • Control small appliances such as desk portable fans or pump loads
  • Larger appliances such as high torque machine control
  • Digital operation LED input screens (for easy parameter setting, input and monitoring)
  • Compact and sleek design (saves space in constricted areas)
  • Easy installation
  • Automatic restarts (varies in models)
  • Emergency stops (varies in models)
  • Safety self-diagnostics (varies in models)
  • Energy saving (not having a constant running frequency can save electricity costs)

Where might I use an inverter drive?

Inverter drives are used in a wide range of industrial applications. Inverter drives are particularly useful for applications that require precise control of speed and torque with motors.

These kinds of drives are used in areas such as small appliances like simple fan and pump loads all the way through to high torque machine control applications. Most inverter drives feature digital operation and commonly featuring an LED display or analogue dial. This provides the user with direct control of the important parameters they ish to set themselves. As result, this makes them easy to set up and monitor or adjust where needed.

Some inverters are very compact, making them easy to install and have many side by side if needed. Many inverter drives have built in security features such as automatic restarts after power failures, emergency stops or safety self-diagnostics that help you control the safety of your environment.


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Description Price Power Rating Phase Supply Voltage Current Rating Output Frequency For Use With Ambient Temperature Overall Width Overall Length Series IP Rating Overall Depth Control Panel Field Bus Communication Type
RS Stock No. 793-2128
Mfr. Part No.6SL3244-0BB00-1BA1
BrandSiemens
TWD7,558.00
Each
units
- - 24 V 1.5 A - PM230, PM240, PM250 0 → +50°C 73mm 199mm SINAMICS G120 IP20 46mm No Modbus
RS Stock No. 784-0767
Mfr. Part No.6SL3210-5BE21-1UV0
BrandSiemens
TWD12,359.00
Each
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1.1 kW 3 400 V ac - 0 → 550Hz - - 166mm 90mm SINAMICS V20 IP20 146mm Yes Modbus
RS Stock No. 784-0814
Mfr. Part No.6SL3210-5BE31-1UV0
BrandSiemens
TWD31,567.00
Each
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11 kW 3 400 V ac - 0 → 550Hz - - 207mm 240mm SINAMICS V20 IP20 173mm Yes Modbus
RS Stock No. 784-0779
Mfr. Part No.6SL3210-5BE21-5UV0
BrandSiemens
TWD13,629.00
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1.5 kW 3 400 V ac - 0 → 550Hz - - 166mm 90mm SINAMICS V20 IP20 146mm Yes Modbus
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Mfr. Part No.132F0009
BrandDanfoss
TWD8,725.00
Each
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0.37 kW 3 230 V 2.2 A 0 → 200 (VVC+ Mode) Hz, 0 → 400 (U/f Mode) Hz - Maximum of +50°C 150mm 70mm VLT FC51 IP20 148mm Yes Modbus
RS Stock No. 669-5806
Mfr. Part No.ATV12HU15M3
TWD11,230.00
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1.5 kW 3 230 V 9.3 A 400Hz - -10 → +50°C 105mm 143mm ALTIVAR 12 IP20 131mm Yes ModBus
RS Stock No. 767-3024
Mfr. Part No.FR-D740-050SC-EC
BrandMitsubishi
TWD15,026.00
Each
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2.2 kW 3 400 V ac 5 A 0.2 → 400Hz - -10 → +40°C 108mm 128mm FR-D740 IP20 155.5mm Yes ModBus
RS Stock No. 466-0101
Mfr. Part No.6SE6440-2AD25-5CA1
BrandSiemens
TWD156,544.00
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5.5 kW 3 400 V ac 19 A 0 → 550Hz - -10 → +40°C 185mm 245mm MICROMASTER 440 IP20 195mm - -
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Mfr. Part No.ATV12H037M2
TWD7,470.00
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0.37 kW 1 230 V 4.9 A 400Hz - -10 → +40°C 72mm 143mm ALTIVAR 12 IP20 121mm Yes ModBus
RS Stock No. 820-3572
Mfr. Part No.174334 & DE1-342D1FN-N20N
BrandEaton
TWD9,234.00
Each
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0.75 kW 3 400 V ac 2.1 A 300Hz - Maximum of +50°C 45mm 230mm PowerXL DE1 IP20 168mm - ModBus RTU
RS Stock No. 767-3040
Mfr. Part No.FR-D720S-042SC-EC
BrandMitsubishi
TWD7,572.00
Each
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0.75 kW 1 230 V ac 4.2 A 0.2 → 400Hz - -10 → +40°C 68mm 128mm FR-D720S IP20 162.5mm Yes ModBus
RS Stock No. 784-0745
Mfr. Part No.6SL3210-5BE13-7UV0
BrandSiemens
TWD10,540.00
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0.37 kW 3 400 V ac - 0 → 550Hz - - 150mm 90mm SINAMICS V20 IP20 146mm Yes Modbus
RS Stock No. 705-4786
Mfr. Part No.ACS310-03E-08A0-4
BrandABB
TWD21,172.00
Each
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3 kW 3 400 V 8 A 0 → 500Hz - -10 → +50°C 70mm 239mm ACS310 IP20 161mm - ModBus
RS Stock No. 847-3869
Mfr. Part No.169060 & DA1-34018FB-A20C
BrandEaton
TWD54,747.00
Each
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7.5 kW 3 400 V 18 A 0 → 500Hz - -10 → +50°C 273mm 131mm PowerXL DA1 IP20 204mm - CANOpen
RS Stock No. 125-3247
Mfr. Part No.ATV320U11M2C
TWD13,780.00
Each
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1.1 kW 1 230 V ac 13.8 A @ 200 V ac 0.1 → 599Hz Single Phase Asynchronous & Synchronous Motors -10 → +50 (without Derating) °C, +50 → +60 (with Derating) °C 158mm 105mm ATV320 IP20 142mm Yes Profibus
RS Stock No. 820-3579
Mfr. Part No.174336 & DE1-345D0FN-N20N
BrandEaton
TWD12,195.00
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2.2 kW 3 400 V ac 5 A 300Hz - Maximum of +50°C 90mm 90mm PowerXL DE1 IP20 231mm - ModBus RTU
RS Stock No. 767-3059
Mfr. Part No.FR-D720S-070SC-EC
BrandMitsubishi
TWD9,241.00
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1.5 kW 1 230 V ac 7 A 0.2 → 400Hz - -10 → +40°C 108mm 128mm FR-D720S IP20 155mm Yes ModBus
RS Stock No. 669-5786
Mfr. Part No.ATV12HU15M2
TWD7,730.00
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1.5 kW 1 230 V 14.9 A 400Hz - -10 → +50°C 105mm 143mm ALTIVAR 12 IP20 156mm Yes ModBus
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Mfr. Part No.6SL3210-5BE24-0UV0
BrandSiemens
TWD20,148.00
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4 kW 3 400 V ac - 0 → 550Hz - - 160mm 140mm SINAMICS V20 IP20 165mm Yes Modbus
RS Stock No. 385-134
Mfr. Part No.VZA45P5FAA
BrandOmron
TWD44,701.00
Each
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5.5 kW 3 400 V 14.8 A 0.1 → 400Hz - - 140mm 254mm V1000 IP20 140mm Yes Profibus