Frequency inverters

How to choose this product

A frequency inverter controls the speed or torque of an electric motor. It can operate in four quadrants, by acceleration or braking, and in either direction.

Applications

Industrial uses for these devices include the control of high-power electric motors, machine tools and transport machinery. They are also found in the plastics and metal industries, on injection molding equipment, construction cranes, windlasses and other lifting gear, and on air compressors and pumps.

Technologies

While these inverters are usually found on asynchronous three-phase machines, some are used with single-phase motors or synchronous versions with permanent magnets.

They can regulate motor speed along an acceleration curve, compensating for load and the variation in speed or torque. Braking requires the use of a dissipation resistor or the re-injection of dissipated energy into the electrical network. Control can be a function of a potentiometer setting, a 0-10 V or 4-20 mA signal, via an RS485 serial port or a Profibus, Modbus or Ethernet network.

Speed adjustment is by incremental or absolute encoder, a tachometer generator or current flow analysis without a sensor. Such devices also improve power factor and protect the motor from excess voltage and current. They maintain speed or torque within a normal range and forestall oscillatory phenomena.

520 companies | 1896 industrial products

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Magnatex Pumps Inc. D700 series
Variable-frequency AC drive D700 series Magnatex Pumps Inc.

Low Cost Sub-Micro VFD Digital setting dial with integrated display, making...

Magnatex Pumps Inc. E560 series
Variable-frequency AC drive E560 series Magnatex Pumps Inc.

The cost-effective variable speed control solution for general purpose...

Magnatex Pumps Inc. E700 series
Vectorcontrolled E700 series Magnatex Pumps Inc.

Big Drive Vector Control Capability in a micro drive - delivering outstanding performance for a wide...

Magnatex Pumps Inc. F700 series
For threephase motors F700 series Magnatex Pumps Inc.

Built to optimize 3-phase motor control, saving energy for virtually all general purpose applications. UL Type 1, plenum rated, enclosure...

Magnatex Pumps Inc. max. 2 000 gpm | MAXP series
Magnetic drive chemical centrifugal pump max. 2 000 gpm | MAXP series Magnatex Pumps Inc.

The MAXP Series of pumps has been designed to conform to ANSI B73.3 dimensional standards. The pumps are extremely rugged, which makes them ideal for rigorous duty in the chemical and petrochemical industries....

video Magnatex Pumps Inc. max. 340 gpm | MPL / MPHL series
Magnetic drive centrifugal pump max. 340 gpm | MPL / MPHL series Magnatex Pumps Inc.

Close coupled, compact, MPL Series pumps are the efficient and dependable choice for medium to high head applications. The process side of the MPL pump conforms to ANSI B73.3 dimensions. Affordable, high...

Shenzhen Encom Electric Technologies Co., Ltd EDS-V300
AC decentralized variable-speed drive EDS-V300 Shenzhen Encom Electric Technologies Co., Ltd

ENC 3 phase converter 1.150% of rated torque at 1 Hz freq. 2.Built-in PID controller 3.16 segments speed 4.remote keyboar Place of Origin Guangdong, China (Mainland) Brand Name ENC Model Number EDS1000...

Shenzhen Encom Electric Technologies Co., Ltd 18.5 - 132 kW | EDS1000 Series
For universal applications 18.5 - 132 kW | EDS1000 Series Shenzhen Encom Electric Technologies Co., Ltd

EDS1000 AC drive (VFD, inverter, VSD, frequency drive)series can fulfill all kinds of demand for general inverter by advanced control manner which make high torque/high precision and wide-range speed...

Shenzhen Encom Electric Technologies Co., Ltd 0.2 - 1.5 kW | EDS800 Series
Digital 0.2 - 1.5 kW | EDS800 Series Shenzhen Encom Electric Technologies Co., Ltd

Can make up of inverter network independently and the inverter can set to be mainframe or sub-device; 2. With speed adjusting...

Shenzhen Encom Electric Technologies Co., Ltd 11 - 75 kW | EDS2800 Series
Vectorcontrolled 11 - 75 kW | EDS2800 Series Shenzhen Encom Electric Technologies Co., Ltd

EDS2800 series inverters(frequency inverter, AC drive, AC motor drive) are special for injection molding machine which are developed independently based on EDS2000 by...

Shenzhen Encom Electric Technologies Co., Ltd EDS1000
Variable-frequency AC drive EDS1000 Shenzhen Encom Electric Technologies Co., Ltd

EDS1000 multi-function universal inverter(AC drive, Variable Frequency Drive, CE approved) can fulfill demand of big torque,...

Shenzhen Encom Electric Technologies Co., Ltd 7.5 - 400 kW | EDS2080 Series
High-performance AC drive 7.5 - 400 kW | EDS2080 Series Shenzhen Encom Electric Technologies Co., Ltd

Have all the features of EDS2000 series; 2. Bears automatic voltage regulation (AVR) and automatic current limiting function; 3....


Elettronica Santerno 1.3 - 3 000 kW, 200 - 690 V | Sinus Penta
Vectorcontrolled 1.3 - 3 000 kW, 200 - 690 V | Sinus Penta Elettronica Santerno

Wide power supply voltage range, 200Vac÷690Vac DC power supply range 280÷970Vdc Input...


Elettronica Santerno 0.37 - 22 kW, 200 - 480 V | Sinus M
Vectorcontrolled 0.37 - 22 kW, 200 - 480 V | Sinus M Elettronica Santerno

200 - 480 Vac power supply Power range 0,37 - 22 kW Full...

Elektromotorenwerk GmbH max. 1.1 kW | mini 4.8
For singlephase motor max. 1.1 kW | mini 4.8 Elektromotorenwerk GmbH

Applications for single-phase power supply up to max. 1,1 kW shaft power Pumps Fans Compressorr Other drives with variable speed Examples Temperatur controlled ventilation systems: Depending...

Elektromotorenwerk GmbH 0.55 - 7.5 kW | Inveor
Frequency converter for three-phase motors 0.55 - 7.5 kW | Inveor Elektromotorenwerk GmbH

Applications for three-phase power supply up to max. 7,5 kW shaft power Pump Fans Compressors Other drives with variable speed Scope of Application The compact drive systems type INVEOR are high grade...

KALEJA Elektronik GmbH 0.25 - 0.75 kW
Compact programmable 0.25 - 0.75 kW KALEJA Elektronik GmbH

Compact frequency inverters. Simple parameters at the integrated control panel For...

KALEJA Elektronik GmbH 1.5 - 2.2 kW
Compact programmable 1.5 - 2.2 kW KALEJA Elektronik GmbH

Compact frequency inverters. Simple parameters at the integrated control panel For...

KALEJA Elektronik GmbH 1.5 - 2.2 kW
For threephase motors 1.5 - 2.2 kW KALEJA Elektronik GmbH

Compact frequency inverters. Simple parameters at the integrated...

KALEJA Elektronik GmbH 0.25 - 0.75 kW, IP54 | FRU-200
Compact programmable 0.25 - 0.75 kW, IP54 | FRU-200 KALEJA Elektronik GmbH

Compact frequency inverters. Simple parameters at the integrated control...

KALEJA Elektronik GmbH 12 - 24 VDC, 8 A
DC motor speed controller 12 - 24 VDC, 8 A KALEJA Elektronik GmbH

Motor powered for single direction of rotation. Start...

KALEJA Elektronik GmbH 12 - 60 VDC, 4 - 6 A
DC motor speed controller 12 - 60 VDC, 4 - 6 A KALEJA Elektronik GmbH

Motor powered for single direction of rotation....

Adlee Powertronic Co., Ltd. 220 - 440 VAC, 0.4 - 22 kW
Variable-frequency AC drive 220 - 440 VAC, 0.4 - 22 kW Adlee Powertronic Co., Ltd.

The Variable Frequency Drives is suitable for any general-purpose application that involves a AC motor, has full of operation functions. Built-in variable digital/analog...

AuCom Electronics 2.3 - 13.8 kV, 50 - 60 Hz | VFD series
Variable-frequency AC drive 2.3 - 13.8 kV, 50 - 60 Hz | VFD series AuCom Electronics

AuCom is proud to offer a range of Variable Frequency Drives for 3-phase motor control. A variable frequency drive (VFD) controls the...

KSB S.A.S. - France PumpDrive
For universal applications PumpDrive KSB S.A.S. - France

Self-cooling frequency inverter which allows the motor speed to be varied continuously by means of standard signals and a field bus. Because PumpDrive is self-cooling,...

KSB S.A.S. - France max. 225 m, max. 1 400 m³/h | Magnochem
Magnetic drive centrifugal pump max. 225 m, max. 1 400 m³/h | Magnochem KSB S.A.S. - France

Horizontal, seal-less, mag-drive volute casing pump in back pull-out design to ISO 2858...

KSB S.A.S. - France max. 218 m, max. 300 m³/h | Magnochem-Bloc
Close coupled magnetic drive centrifugal pump max. 218 m, max. 300 m³/h | Magnochem-Bloc KSB S.A.S. - France

Single-stage volute casing pump in close-coupled design; hydraulic system and casing dimensions based on...

Demag Cranes & Components 1.5 - 560 kW | Dedrive Pro
For materials handling equipment 1.5 - 560 kW | Dedrive Pro Demag Cranes & Components

Our Dedrive Pro frequency inverters are high-performance components ranging from 1.5 to 560 kW for 380 to 690 V systems. They are the solution...

Demag Cranes & Components 0.75 - 110 kW | Dedrive
Compact frequency converter 0.75 - 110 kW | Dedrive Demag Cranes & Components

Our Dedrive Compact STO frequency inverters offer outstanding performance and satisfy even the most demanding drive requirements with ease. They...

STAHL CraneSystems GmbH SFD series
For materials handling equipment SFD series STAHL CraneSystems GmbH

Give your crane and yourself a treat with our frequency inverters! The stepless acceleration minimises stresses on the crane runway and the building structure. At...

2 products KSB
KSB PumpDrive
For universal applications PumpDrive KSB

Self-cooling frequency inverter which allows the motor speed to be varied continuously by means of standard signals and a field bus. Because PumpDrive is self-cooling,...

KSB max. 300 m³/h, max. 218 m | Magnochem-Bloc
Close coupled magnetic drive centrifugal pump max. 300 m³/h, max. 218 m | Magnochem-Bloc KSB

Horizontal, seal-less, close-coupled, mag-drive volute casing pump to ISO 2858 / EN...

3 products VERLINDE
VERLINDE VARIATOR series
VARIATOR series VERLINDE

VARIATOR speed control systems...

VERLINDE VARIATOR ASR series
For materials handling equipment VARIATOR ASR series VERLINDE

This option enables hoist speed to be automatically adapted to the hook suspended load. This...

VERLINDE VARIATOR ESR series
For materials handling equipment VARIATOR ESR series VERLINDE

This option allows reduction of cycle time (faster return speed for empty returns)...

MUNSCH Plastic Welding Technology Powerbox
Powerbox MUNSCH Plastic Welding Technology

Accommodates the frequency...

2 products Tecna S.p.a
Tecna S.p.a TE1500
TE1500 Tecna S.p.a

The TE1500 series identifies products designed for resistance welding with medium frequency inverter technology. The task of the welding system is to...

Tecna S.p.a TE1500R
TE1500R Tecna S.p.a

The TE1500R series identifies products designed for resistance welding with medium frequency inverter technology. The task of the welding system is to...

1 products SERRA
SERRA 1000 Hz | UMF series
1000 Hz | UMF series SERRA

Medium Frequency inverters...

Helios Ventilatoren 3.7 - 43.5 A, 1.5 - 22 kW | FU series
Digital 3.7 - 43.5 A, 1.5 - 22 kW | FU series Helios Ventilatoren

Simple adjustment and control of values via display. Extensive...

1 products GHISALBA
GHISALBA
GHISALBA

- Too many applications - Built‐in CANOpen and...

1 products Minitec
Minitec 0.37 kW, 230 V
0.37 kW, 230 V Minitec

- Built in On/Off key - 1Q mode of operation - Mains overvoltage/ undervoltage monitoring device - Motor load monitoring - Short circuit monitoring phase/ phase, phase/ground - Adjustable acceleration...

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Associated Terms

drives, frequency drives, speed controllers, speed servodrives, industrial frequency inverters

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