HAVELLS INVERTER DUTY MOTORS

Havells Inverter Duty Motors

High-Performance Motors for Variable-Speed & VFD Applications

We Tech Power Solutions Ltd supplies Havells Inverter Duty Motors for industrial applications requiring reliable variable-speed operation, controlled acceleration, high torque and consistent motor performance with inverter drives.

Designed for integration with VFD systems, Havells Inverter Duty Motors are suitable for applications where motor speed needs to be adjusted according to process requirements. They are available across a broad power range and can be selected with application-specific options such as thermistors, insulated bearings, roller bearings, space heaters and forced cooling.

The current WTPSL range covers 0.55 kW to 355 kW (0.75 HP to 470 HP) with 2-pole, 4-pole, 6-pole and 8-pole configurations.

What are Havells Inverter Duty Motors?

Havells Inverter Duty Motors are industrial three-phase motors designed for operation with variable frequency drives.

Unlike a motor selected only for fixed-speed operation, an inverter-duty motor needs to be evaluated for its operating frequency range, insulation system, cooling performance, bearing protection and torque requirements when connected to a VFD.

Havells' published material identifies its inverter-duty motors as suitable for standard VFD drives and lists features such as improved heat dissipation and a wide motor range.

These motors are particularly useful in industrial systems where process speed changes, controlled acceleration/deceleration or energy optimization are required.

Why Choose Havells Inverter Duty Motors?

Designed for VFD Operation

Suitable configurations can be integrated with variable frequency drives for controlled motor speed and process automation.

Variable-Speed Performance

The motor-drive combination allows machine speed to be adjusted according to process requirements.

High Torque Capability

Suitable for applications requiring reliable torque during acceleration and changing operating conditions.

Wide Power Range

The current WTPSL specification covers 0.55 kW to 355 kW / 0.75 HP to 470 HP.

Multiple Speed Configurations

Available 2-pole, 4-pole, 6-pole and 8-pole configurations provide options for different operating-speed requirements.

Robust Cast-Iron Construction

The standard range uses cast-iron construction for demanding industrial applications.

IP55 Protection

IP55 protection is specified for the standard product range listed by WTPSL.

Class F Insulation

Class F insulation provides suitable thermal capability for industrial motor operation within specified conditions.

Application-Specific Options

Options such as thermistors, insulated bearings, roller bearings, space heaters and forced cooling can be selected according to the application.

Key Features

• Designed for inverter/VFD applications

• Three-phase industrial motor

• 0.55–355 kW power range

• 0.75–470 HP power range

• 2 / 4 / 6 / 8 pole configurations

• 415 V standard supply

• 50 Hz standard frequency

• S1 continuous duty

• TEFC enclosure

• IP55 protection

• Class F insulation

• Cast-iron body

• B3 foot mounting

• B5 flange mounting

• B35 foot-cum-flange mounting

• Frame sizes 160–355L

• Thermistor option

• Insulated-bearing option

• Roller-bearing option

• Space-heater option

• Forced-cooling option

• LHS/RHS terminal-box configurations

The above features are based on the current WTPSL specification and available product options. Exact features depend on the selected motor configuration.

Technical Specifications

Specification Havells Inverter Duty Motors

Brand Havells

Motor Type Inverter Duty Motor

Application VFD / Variable-Speed Applications

Power Range 0.55–355 kW

HP Range 0.75–470 HP

Voltage 415 V

Frequency 50 Hz

Phase Three Phase

Pole Options 2 / 4 / 6 / 8 Pole

Approx. Speed 3000 / 1500 / 1000 / 750 RPM

Ambient Temperature Up to 50°C

Duty S1

Enclosure TEFC

Protection IP55

Insulation Class F

Body Cast Iron

Frame Size 160–355L

Terminal Box Top / configuration dependent

Mounting B3 / B5 / B35

Standard Inverter Duty Motors

Cooling Standard / forced cooling depending on configuration

The current WTPSL page specifies 415 V, 50°C ambient, 2/4/6/8-pole options, 0.55–355 kW, S1 duty, TEFC, IP55, Class F insulation and 160–355L frame sizes.

Important: Actual rated speed, current, efficiency, torque, permissible frequency range and other electrical characteristics vary according to the specific Havells motor model. Confirm the complete motor specification before ordering.

Havells Inverter Duty Motor Options

Depending on the application, additional motor options can be selected.

Thermistors

Thermistors can be used for motor temperature monitoring and protection when connected to a suitable protection system.

Insulated Bearings

Insulated bearings can help address bearing-current considerations in applicable inverter-driven installations.

Roller Bearings

Roller-bearing configurations can be selected for applications requiring appropriate radial-load handling.

Space Heater

A space heater can help reduce condensation when the motor is installed in humid environments or remains stationary for extended periods.

Forced Cooling

Forced cooling can be considered where the motor operates at reduced speed for extended periods and the standard cooling arrangement is insufficient.

Terminal Box Position

Terminal-box location can be configured according to the applicable motor design and installation requirements.

The listed specialty options are shown on the current WTPSL page and in available Havells motor pricing documentation.

Havells Inverter Duty Motors for VFD Applications

A VFD allows motor speed to be adjusted by varying the frequency and voltage supplied to the motor.

For inverter-driven applications, motor selection should consider:

• Required operating-speed range

• Minimum operating speed

• Maximum operating frequency

• Continuous torque requirement

• Peak torque

• Acceleration/deceleration

• Cooling at reduced speed

• Motor insulation

• Bearing protection

• Cable length

• EMC requirements

• Harmonic effects

• Duty cycle

For demanding variable-speed applications, the motor and VFD should be selected as a complete drive system.

Benefits of VFD Motor Operation

Precise Speed Control

Motor speed can be adjusted according to the process requirement.

Controlled Acceleration

The VFD can provide controlled acceleration instead of applying full line voltage directly to the motor.

Controlled Deceleration

Speed reduction can be managed according to the machine and process requirements.

Process Optimization

Variable-speed operation can improve control in pumps, fans, conveyors and other equipment.

Potential Energy Savings

In applications where process demand varies, reducing motor speed can reduce energy consumption, depending on the load characteristics.

Applications of Havells Inverter Duty Motors

Pumps

Suitable for applications where flow or pressure requirements vary and motor speed needs to be controlled.

Fans & Blowers

Useful for variable-airflow applications in HVAC, ventilation and industrial process systems.

Conveyors

Suitable for conveyors requiring controlled starting, stopping and variable operating speeds.

Material Handling

Can be used in handling equipment requiring controlled motor movement.

Compressors

Suitable for selected compressor applications where variable-speed operation is required.

Extruders

Can be used in plastics-processing equipment requiring controlled motor speed and torque.

Textile Machinery

Suitable for textile machinery requiring variable-speed operation.

Printing Machinery

Useful for applications requiring coordinated or adjustable machine speed.

Packaging Machinery

Suitable for feeders, conveyors and machine sections requiring controlled speed.

Machine Tools

Can be used in variable-speed machine-tool applications when the motor and VFD are correctly matched.

Mixers & Agitators

Suitable for process equipment where mixing speed needs to be adjusted according to production requirements.

Rolling Mill Auxiliary Systems

Can be used for selected auxiliary drive applications requiring variable-speed operation.

Industries

Havells Inverter Duty Motors can be used across:

• Manufacturing

• Packaging

• Textile

• Plastics

• Chemical Processing

• Pharmaceuticals

• Food Processing

• Water & Wastewater

• HVAC

• Material Handling

• Paper & Pulp

• Steel & Metals

• Cement

• Agriculture & Agro Processing

• Process Industries

• Heavy Engineering

Havells Inverter Duty Motor Mounting Options

B3 Foot Mounted

Suitable for conventional base-mounted industrial installations.

B5 Flange Mounted

Suitable for direct flange mounting to compatible equipment.

B35 Foot-Cum-Flange Mounted

Combines foot and flange mounting for applications requiring additional installation flexibility.

The current WTPSL specification lists B3, B5 and B35 mounting options.

Havells Inverter Duty Motor vs Standard Industrial Motor

Feature Inverter Duty Motor Standard Fixed-Speed Motor

Primary Use VFD applications Fixed-speed operation

Speed Control Designed for variable-speed applications Primarily fixed-speed

Cooling Consideration Important across speed range Generally based on rated speed

Insulation Requirements Must be evaluated for inverter output Standard supply-oriented

Bearing Protection May be required Application dependent

VFD Compatibility Specific configuration Must be verified

Application Pumps, fans, conveyors, process machinery General industrial drives

Not every standard motor should automatically be assumed suitable for the full operating range of a VFD. The motor's construction and application requirements should be checked before selection.

Havells Inverter Duty Motor Selection Guide

1. Determine Required Power

Identify the required motor output in kW or HP.

2. Determine Operating Speed

Select the appropriate 2, 4, 6 or 8-pole configuration based on the required machine speed.

3. Define the VFD Speed Range

Specify the minimum and maximum operating frequency and corresponding motor speed.

4. Check Torque Requirements

Determine continuous and peak torque requirements, especially during acceleration.

5. Select Cooling

Verify whether standard motor cooling is sufficient or forced cooling is required for extended low-speed operation.

6. Check Bearing Requirements

For larger motors and certain VFD installations, evaluate the need for insulated bearings.

7. Select Mounting

Choose B3, B5 or B35 according to the driven machine.

8. Check Environment

Consider ambient temperature, humidity, dust, chemicals, altitude and ventilation.

9. Specify Motor Options

Select thermistors, space heater, forced cooling, roller bearings and other options where required.

10. Confirm Complete Motor Model

Always verify the complete Havells motor model/order specification before purchasing.

Havells Inverter Duty Motors Supplier in Ahmedabad, Gujarat & India

We Tech Power Solutions Ltd supplies Havells Inverter Duty Motors for customers in Ahmedabad, Gujarat and across India.

We support customers with:

• Havells inverter-duty motor sourcing

• VFD motor selection

• Motor power and RPM selection

• Motor specification verification

• Replacement motor identification

• VFD compatibility assessment

• Mounting selection

• Motor options selection

• Technical comparison

• Commercial quotation support

For replacement requirements, share the existing motor nameplate, kW/HP, RPM, voltage, mounting type, VFD details and quantity.

Havells Inverter Duty Motor Supplier for UAE & Gulf

We also support industrial motor sourcing requirements for:

• UAE

• Dubai

• Abu Dhabi

• Saudi Arabia

• Qatar

• Oman

• Kuwait

• Bahrain

For Gulf-region enquiries, provide the motor power, speed, voltage, application, VFD operating range, mounting arrangement and required quantity.

Why Choose We Tech Power Solutions Ltd?

• Havells industrial motor sourcing support

• Inverter-duty motor selection

• VFD application guidance

• Ahmedabad-based supplier

• Motor replacement assistance

• Application-based motor selection

• Technical specification verification

• OEM project support

• India-wide supply assistance

• Gulf-region sourcing support

• Commercial quotation assistance

WTPSL currently identifies itself as an authorized dealer of Havells Motors and offers Havells IE2, IE3, IE4, crane-duty, smoke, brake and inverter-duty motor ranges.

Warranty

The current WTPSL product page states that Havells motors are covered under warranty for 12 months from commissioning or 18 months from dispatch, whichever is earlier, subject to proper use and applicable warranty conditions.

Warranty conditions should be reconfirmed for the specific motor configuration at the time of quotation and order.

Frequently Asked Questions

What is a Havells Inverter Duty Motor?

A Havells Inverter Duty Motor is an industrial motor designed for operation with variable frequency drives, allowing controlled motor speed and suitable performance across the intended operating range.

What is the power range of Havells Inverter Duty Motors?

The current WTPSL specification lists a range of 0.55 kW to 355 kW, equivalent to approximately 0.75 HP to 470 HP.

What pole configurations are available?

The listed range includes 2-pole, 4-pole, 6-pole and 8-pole motors, corresponding approximately to 3000, 1500, 1000 and 750 RPM at 50 Hz.

Are Havells Inverter Duty Motors suitable for VFD drives?

Yes. Havells' published material identifies the inverter-duty range as suitable for standard VFD drives.

What mounting options are available?

The current WTPSL specification lists B3 foot, B5 flange and B35 foot-cum-flange mounting.

What protection and insulation are specified?

The standard WTPSL specification lists IP55 protection and Class F insulation.

Are forced-cooling options available?

Yes. Forced cooling is listed as an available specialty for the Havells Inverter Duty Motor range.

Can insulated bearings be specified?

Yes. Insulated bearings are listed among the available specialty options.

Can We Tech Power Solutions Ltd help select the correct Havells Inverter Duty Motor?

Yes. Share your kW/HP, RPM, voltage, application, VFD model/range, mounting and quantity, or send the existing motor nameplate, and WTPSL can assist with motor selection and quotation.

Need Havells Inverter Duty Motor Price or Selection Support?

Looking for a Havells Inverter Duty Motor for a new machine, VFD application, replacement or industrial automation project?

Share your required kW/HP, RPM, voltage, VFD details, mounting type, application and quantity with We Tech Power Solutions Ltd for product selection and quotation support.