VFD AC Drives
VFD AC Drives control a compatible AC motor's speed and torque through variable-frequency output.
Product-type reference. The supplied make and configuration are confirmed in your quotation.
VFD AC drives for industrial purchasing
Tirupati Power Enterprises supplies variable frequency drive (VFD) requirements for industrial motor applications. For a VFD drive price, send the motor nameplate, input supply, driven load and operating duty. A kW or HP figure alone can hide differences in output current, overload capability and installation conditions.
This page covers the drive as a component. State separately if you need an assembled VFD control panel, enclosure, protective devices, bypass or installation/commissioning services. For maintenance and projects in West Bengal, Odisha and Assam, include the existing series, required date and plant PIN code so the quotation can distinguish an exact spare from a new engineered selection.
Information to include in your RFQ
Selection requirements for this product type |
|---|
Motor voltage, current and duty |
Input phases and voltage |
Torque, overload and speed range |
Braking, EMC, enclosure and communication |
Replacement and quotation checks
For a replacement, send the existing VFD AC drives reference and photographs of its markings, connections and mounting. Include the equipment drawing or datasheet where available. Identify which functions must remain unchanged and whether an alternative make is acceptable.
Related products and buying guidance
Browse automation requirements
SMPS & Industrial Power Supplies
Request a line-by-line quotation
Sources and further reading
OMRON industrial components and datasheets
VFD selection schedule for a comparable quotation
Begin with motor current at the actual voltage, then establish load and installation duty. Do not assume every drive with the same power label has the same usable output.
Selection point | Specify in your enquiry | Check before ordering |
|---|---|---|
Motor | Nameplate current, voltage, power, speed and motor type | Check the selected drive’s motor compatibility and output current |
Input supply | Voltage, phase and frequency; supply constraints | Single-phase input is supported only by appropriate models/arrangements |
Load and duty | Fan/pump, conveyor or other load; overload and cycle | Compare the applicable duty rating and overload capability |
Control interface | Start/stop, speed reference, I/O, PLC communication and feedback | Identify required built-in functions and optional modules |
Installation | Ambient, altitude, enclosure/IP, ventilation and motor cable | Review model-specific derating and installation instructions |
Accessories | Reactor/filter, braking equipment, keypad and protection scope | Separate required accessories from the bare drive price |
Price comparison: ask for the complete configuration
VFD drive prices vary with voltage class, output current, duty rating, control functions and accessories. Compare the same duty basis: a normal-duty power label and a heavy-duty power label may differ on the same series. Ask whether the offer includes filters, reactors, braking components, keypad or communication options. An assembled panel quotation should identify its enclosure, protection, control and service scope separately from the drive.
Send a purchase-ready enquiry
For a replacement, send the full code, motor nameplate, existing parameters/backup if available and connected I/O or network information. An alternative series may require more than a mechanical swap.
For a new installation, attach the motor/load schedule and state the required speed range, duty cycle and any braking requirement. Have the designer review motor cooling and protection at the intended operating speeds.
- Motor nameplate and input supply voltage/phase.
- Load application, duty cycle, required overload and speed range.
- Control I/O, communication, braking and accessories.
- Enclosure/environment, component or panel scope, quantity and destination.
Checks before you approve the order
Size by current and duty
Danfoss’s sizing guidance prioritises motor current and voltage, including the required overload and installation conditions. Use kW/HP as supporting data rather than the sole selection.
Separate single-phase input from output
Do not assume a drive can accept any phase arrangement. Specify the available supply and motor, then check an appropriate documented model.
Agree the replacement scope
Keep parameter transfer, control changes and commissioning responsibilities explicit when changing a drive series.
Buying guidance and technical reference
Related buying ranges and detailed guidance
Contactors & Overload (O/L) Relays
Motor Protection Circuit Breakers (MPCB)
VFD Selection Guide: Motor Current, Load Duty and Panel Integration
PLC Control Panel Specification Checklist: I/O, Sequences and Handover
Manufacturer technical reference
Danfoss: motor-current, voltage and duty checks for VFD sizing
Questions about VFD AC Drives
What should I check before selecting VFD AC drives?
Drive selection from motor kW alone can miss overload and ambient derating. Confirm motor compatibility, braking requirements and the manufacturer's application rules.
What information is needed to quote VFD AC drives?
Provide motor voltage, current and duty; input phases and voltage; torque, overload and speed range; braking, EMC, enclosure and communication. Include the quantity, requested make or existing reference and delivery PIN code.
What information is needed for a VFD drive price?
Provide motor current and voltage, supply phase, driven load, duty, required controls, accessories and quantity. Include the full code for a repeat purchase.
Can I select a VFD only by motor HP or kW?
No. Check motor current at the actual voltage, load duty, overload requirement and environmental derating against the selected drive.
Can a VFD run from a single-phase supply?
Some models support specified single-phase input arrangements. Confirm the exact input rating and motor requirements; it is not a universal feature of all drives.
Is a VFD control panel included with the drive?
A bare drive and an assembled panel are separate supply scopes. State enclosure, protection, controls, bypass and service requirements if you need a complete panel.
Can a different drive brand replace the old unit?
A proposed alternative needs motor, duty, supply, I/O, communication, dimensions and installation checks. Parameter and commissioning work should be identified before approval.
Relevant products and guidance
A PLC control panel specification should define the process sequence, operating modes, tagged I/O, field interfaces, communications and acceptance tests.
Read articleBuying GuidesVFD Selection: Motor Current, Load and Control ChecksVFD selection should use motor voltage, rated current, motor type and the required load duty.
Read articleNeed this for your application?
Send the specification, quantity and delivery PIN code. Our Kolkata team quotes supply across India, including eastern India, with availability and freight confirmed for your order.