Industrial automation · Motor control
AC drives suppliers in India
Industrisol is among the AC drives suppliers in India helping machine builders, OEMs and plant maintenance teams pick the right drive family, control mode and rating. We source Yaskawa, Panasonic, Delta and Fuji drives for customers in Mumbai and across India.
- Single-phase and three-phase input drives, from fractional kW upward
- Help choosing between V/f, sensorless vector and closed-loop vector control
- Drives matched to your motor nameplate and duty cycle
- Spares and replacement drives for running machines
Talk to our team
Need a price, alternative or spec check?
Share the model, quantity and application. We reply with suitable options and a quotation.
- Phone: +91 90433 36700
- Email: industrisol@industrisol.com
What an AC drive does on a machine
An AC drive sits between the mains supply and an AC induction or permanent-magnet motor. It rectifies the incoming supply to DC, then uses an IGBT inverter stage to rebuild an output of variable voltage and frequency. Because motor speed follows frequency, the drive gives precise, stepless speed and torque control with soft starting and controlled stopping.
The terms AC drive, inverter and VFD are often used interchangeably. On this page we focus on drive families, control modes and machine applications. If your main goal is energy saving on pumps, fans and blowers, see our VFD page, which covers sizing and savings in detail.
As AC drives suppliers in India, we work from your motor data and application, not just a kW figure, so the drive you receive starts and runs the load the way you expect.
AC drive families we supply
Most industrial drives fall into a few families. Tell us the application and we suggest the family first, then the model.
Compact micro drives
Small single-phase or three-phase drives for conveyors, mixers and small fans, usually up to a few kW with simple V/f control.
General-purpose vector drives
Three-phase drives with sensorless vector control for higher starting torque on extruders, winders and process machines.
Fan and pump drives
Variable-torque drives with PID, sleep and multi-pump functions. Covered in detail on our VFD page.
High-performance drives
Closed-loop vector drives with encoder feedback for cranes, hoists and precise torque control.
Regenerative and braking options
Braking resistors, braking units and regenerative options for high-inertia loads that need fast stopping.
Replacement and retrofit drives
Like-for-like or equivalent drives to replace a failed or obsolete unit on a running machine.
AC drive control modes compared
Control mode decides how well the drive holds speed and torque. This is the most common point of confusion in enquiries.
| Control mode | How it works | Typical use |
|---|---|---|
| V/f (scalar) | Keeps a fixed voltage to frequency ratio; no motor model | Fans, pumps, simple conveyors, multiple motors on one drive |
| Sensorless vector | Estimates flux and torque from motor current | Mixers, extruders, conveyors needing good low-speed torque |
| Closed-loop vector | Uses encoder feedback for speed and position | Cranes, hoists, winders, tension control |
| PM motor control | Drives permanent-magnet synchronous motors | High-efficiency compressors, pumps and fans |
Key specifications for selecting an AC drive
| Specification | What to check |
|---|---|
| Input supply | Single-phase 230 V or three-phase 415 V; supply quality and earthing |
| Output rating | Motor full-load current, not only kW; allow margin for heavy duty |
| Duty rating | Normal duty for fans and pumps, heavy duty for constant-torque loads |
| Overload capacity | Peak torque needed at start or during load changes |
| I/O and communication | Digital and analogue I/O, RS-485 Modbus or fieldbus to your PLC |
| Enclosure and environment | IP rating, ambient temperature, dust and humidity in the panel |
AC drives listed in our catalogue
A sample of drives on our shop. The <a href="https://industrisol.com/product-category/variable-frequency-drive/">variable frequency drive category</a> lists more.
Delta AC Drive
General-purpose Delta AC drive for three-phase induction motors on conveyors, pumps and process machines.
| Motor type | AC induction |
|---|---|
| Control | V/f and vector, model dependent |
Fuji AC Drive
Fuji drives for industrial speed control, suited to machine and process applications.
| Motor type | AC induction |
|---|---|
| Selection | By motor current and duty |
Delta VL Series VFD
Delta VL series drive, often used where a compact general-purpose drive is required.
| Range | VL series |
|---|---|
| Use | General machinery |
Applications for AC drives
AC drives are used wherever a motor needs to run at more than one speed, start gently or stop under control. Common applications our customers enquire about include:
- Conveyors and material handling lines, including our own industrial conveyors
- Mixers, agitators and extruders in plastics, food and chemical plants
- Textile, paper and printing machines needing speed synchronisation
- Cranes, hoists and winders using closed-loop control
- Machine tool auxiliaries, coolant pumps and spindle drives
What to send with your AC drive enquiry
Not sure about some details? Send what you have — we will ask the right follow-up questions.
- Motor nameplate: kW, voltage, full-load current, speed and frequency
- Supply available: single-phase or three-phase, and voltage
- Application and load type (constant torque or variable torque)
- Required speed range and whether braking is needed
- Control signals needed: keypad, analogue, digital or Modbus from a PLC
- Make and model of the existing drive if this is a replacement
- Quantity and delivery location
How an enquiry works
Send your requirement
Share the AC drive details, quantity and site location through the quote form, phone or email. A nameplate photo or existing part number speeds things up.
Technical review
We check the ratings and application against available models and come back with questions if anything is unclear or missing.
Options and quotation
You receive suitable options, including equivalents where an exact match is not available, with a written quotation.
Supply and support
After the order we coordinate dispatch to your site in Mumbai or anywhere in India and remain available for spares and follow-up questions.
Related automation products
What is the difference between an AC drive and a VFD?
Technically there is none. A VFD (variable frequency drive) is a type of AC drive, and both terms describe a device that controls an AC motor by varying output frequency and voltage. In practice people say VFD when talking about pumps, fans and energy saving, and AC drive when talking about machine control. Our VFD page covers sizing for energy saving.
Can a single-phase supply run a three-phase motor through an AC drive?
Yes, within limits. Many small drives accept 230 V single-phase input and give a three-phase output for a 230 V delta-connected motor. Larger ratings usually need a three-phase supply, or the drive must be derated. Share your supply and motor details and we will confirm whether a single-phase input drive is suitable.
Should I size an AC drive by kW or by motor current?
By motor current. Two motors of the same kW can draw different full-load currents depending on poles, efficiency and voltage. Choose a drive whose rated output current, for the chosen duty, is at least the motor full-load current, and add margin for heavy starting or frequent overloads.
Which control mode do I need, V/f or vector?
V/f is enough for fans, pumps and light conveyors, and it is the only option when one drive runs several motors. Sensorless vector gives better torque at low speed for mixers, extruders and loaded conveyors. Closed-loop vector with an encoder is used where speed or torque must be held tightly, such as cranes and winders.
Do I need a braking resistor with my AC drive?
You need one when the load must stop faster than it would coast, or when the motor is overhauled by the load, as in hoists, inclined conveyors or high-inertia fans. Without braking, the drive trips on DC bus overvoltage. We size the resistor from the inertia and stopping time you need.
Can you supply a replacement for a failed drive of another make?
Usually yes. Send the nameplate of the old drive, the motor details and how the drive is wired and controlled. We suggest a direct replacement if available or an equivalent drive, and point out any wiring or parameter differences you should plan for.
Need an AC drive for your machine?
Send your motor nameplate and application and we will propose suitable drive options with a quotation.