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. 820-3585
Mfr. Part No.174339 & DE1-34011FN-N20N
BrandEaton
TWD17,767.00
Each
units
5.5 kW 3 400 V ac 11.3 A 300Hz - Maximum of +50°C 90mm 90mm PowerXL DE1 IP20 231mm - ModBus RTU
RS Stock No. 860-3916
Mfr. Part No.VFD022EL43A
TWD12,029.00
Each
units
2.2 kW 3 400 V ac 7.1 A 0 → 600Hz Constant Pressure Control of Water Pumps, Conveyor, Winders -10 → +50°C 136mm 100mm VFD-EL IP20 174mm - Modbus
RS Stock No. 785-8562
Mfr. Part No.VFD037E43A
TWD23,727.00
Each
units
3.7 kW 3 460 V 11.2 A 0 → 600 Hz 3.7 kW AC Motor -10 → +50°C 100mm 174mm VFD-E IP20 152mm Yes RS485 ModBus
RS Stock No. 125-3237
Mfr. Part No.ATV320U04N4C
TWD15,117.00
Each
units
0.37 kW 3 400 V ac 2.1 A @ 380 V ac 0.1 → 599Hz Three Phase Asynchronous & Synchronous Motors -10 → +50 (without Derating) °C, +50 → +60 (with Derating) °C 158mm 105mm ATV320 IP20 142mm Yes Profibus
RS Stock No. 793-2134
Mfr. Part No.6SL3244-0BB12-1PA1
BrandSiemens
TWD12,965.00
Each
units
- - 24 V 1.5 A - PM230, PM240, PM250 0 → +50°C 73mm 199mm SINAMICS G120 IP20 46mm No Profibus
RS Stock No. 785-8572
Mfr. Part No.VFD150E43A
TWD55,871.00
Each
units
15 kW 3 460 V 35 A 0 → 600 Hz 15 kW AC Motor -10 → +50°C 200mm 310mm VFD-E IP20 190mm Yes RS485 ModBus
RS Stock No. 125-0769
Mfr. Part No.134U7734
BrandDanfoss
TWD46,351.00
Each
units
4 kW 3 400 V 6.8 (441 → 480 V) A, 8.3 (380 → 440 V) A 0 → 500Hz 3 Phase Asynchronous Motors and Permanent Magnet Synchronous Motors 0 → +45 (Full Constant Output Current) °C, 0 → +55 (with Derating) °C 168mm 90mm FC280 IP20 272.5mm Yes Profinet
RS Stock No. 767-3046
Mfr. Part No.FR-D720S-025SC-EC
BrandMitsubishi
TWD6,605.00
Each
units
0.4 kW 1 230 V ac 2.5 A 0.2 → 400Hz - -10 → +40°C 68mm 128mm FR-D720S IP20 142.5mm Yes ModBus
RS Stock No. 669-5783
Mfr. Part No.ATV12H075M2
TWD7,096.00
Each
units
0.75 kW 1 230 V 8.5 A 400Hz - -10 → +40°C 72mm 143mm ALTIVAR 12 IP20 132mm Yes ModBus
RS Stock No. 465-9482
Mfr. Part No.6SE6420-2AB13-7AA1
BrandSiemens
TWD15,848.00
Each
units
0.37 kW 1 230 V ac 4.6 A 0 → 550Hz - -10 → +50°C 73mm 173mm MICROMASTER 420 IP20 149mm - -
RS Stock No. 785-8566
Mfr. Part No.VFD055E43A
TWD27,290.00
Each
units
5.5 kW 3 460 V 14 A 0 → 600 Hz 5.5 kW AC Motor -10 → +50°C 130mm 260mm VFD-E IP20 169.2mm Yes RS485 ModBus
RS Stock No. 820-0970
Mfr. Part No.ATV212HU30N4
TWD29,891.00
Each
units
3 kW 3 400 V ac 7.2 A 0 → 200Hz Asynchronous Motors 0 → +40°C 140mm 184mm ALTIVAR 212 IP20 150mm Yes Apogee P1, BACnet, Metasys N2, Modbus
RS Stock No. 621-1240
Mfr. Part No.ACS150-03E-02A4-4
BrandABB
TWD10,068.00
Each
units
0.75 kW 3 400 V 2.4 A 500Hz - -10 → +40°C 70mm 239mm ACS150 IP20 142mm Yes -
RS Stock No. 465-9634
Mfr. Part No.6SE6420-2UD24-0BA1
BrandSiemens
TWD51,139.00
Each
units
4 kW 3 400 V ac 12.8 A 0 → 550Hz - -10 → +50°C 149mm 202mm MICROMASTER 420 IP20 172mm - -
RS Stock No. 887-4723
Mfr. Part No.ACS355-03E-04A1-4
BrandABB
TWD16,407.00
Each
units
1.5 kW 3 400 V 4.1 A 0 → 600Hz 1.5 kW AC Motor -10 → +40°C 70mm 239mm ACS355 IP20 187mm No -
RS Stock No. 785-8531
Mfr. Part No.VFD015EL21A
TWD7,633.00
Each
units
1.5 kW 1 230 V 15.7 A 0 → 600Hz 1.5 kW AC Motor -10 → +50°C 100mm 174mm VFD-EL IP20 136mm Yes RS485 ModBus
RS Stock No. 669-5786
Mfr. Part No.ATV12HU15M2
TWD8,117.00
Each
units
1.5 kW 1 230 V 14.9 A 400Hz - -10 → +50°C 105mm 143mm ALTIVAR 12 IP20 156mm Yes ModBus
RS Stock No. 784-0779
Mfr. Part No.6SL3210-5BE21-5UV0
BrandSiemens
TWD14,454.00
Each
units
1.5 kW 3 400 V ac - 0 → 550Hz - - 166mm 90mm SINAMICS V20 IP20 146mm Yes Modbus
RS Stock No. 669-5770
Mfr. Part No.ATV12H037M2
TWD7,844.00
Each
units
0.37 kW 1 230 V 4.9 A 400Hz - -10 → +40°C 72mm 143mm ALTIVAR 12 IP20 121mm Yes ModBus
RS Stock No. 784-0767
Mfr. Part No.6SL3210-5BE21-1UV0
BrandSiemens
TWD12,359.00
Each
units
1.1 kW 3 400 V ac - 0 → 550Hz - - 166mm 90mm SINAMICS V20 IP20 146mm Yes Modbus