3-Phase Inverter Duty Motor 11kW 15Hp

The 3-phase 11kW 15Hp inverter duty motor is a medium to large industrial 3-phase electric motor designed to work with a variable frequency drive to convert frequency and input current, enabling flexible rotational speed control. With powerful operation, energy saving, and high durability, this inverter duty motor well meets systems requiring heavy duty, continuous, and precise operation.

General Design of the 3-Phase Inverter Duty Motor 11kW 15Hp

The inverter duty motor is manufactured with a thick and sturdy cast iron housing, offering good load-bearing capacity and vibration reduction during operation. The entire body is coated with anti-rust electrostatic paint, helping protect the motor from moisture, dust, and mechanical impacts in harsh manufacturing environments.

The rear part of the motor is equipped with an independent forced cooling fan, capable of rapid cooling and maintaining a stable temperature even when the machine runs at low speeds or operates under heavy loads for long periods.

Detailed Structure of the Inverter Duty Motor

The 3-phase 11kW 15Hp inverter duty motor belongs to the 3-phase electric motor segment

• Stator: Wound 100% with copper wire, ensuring good electrical conductivity, creating a stable magnetic field, and reducing heat loss.
• Rotor: Composed of stacked electrical steel laminations for high durability and stable rotational efficiency.
• Terminal box: Includes a main box for power connection and an auxiliary box for the forced cooling fan.
• Forced cooling fan: Instead of using an integrated fan blade attached to the shaft, the device uses a separate air blower driven by an independent 220V/380V power grid. No matter how much the inverter slows down the motor shaft, the fan still maintains maximum blowing capacity, preventing overheating that could burn the windings.
• Inverter circuit: Converts alternating current into a variable-frequency source, allowing flexible adjustment of speed and torque.

Classification of the 3-Phase 11kW 15Hp Inverter Duty Motor by Pole Count

The 3-phase 11kW 15Hp inverter duty motor is classified by the number of electrical poles, making it easy to find the ideal torque specifications for machinery.

3-Phase 11kW 15Hp 2-Pole Inverter Duty Motor (2,800 – 3,000 rpm)

The 2-pole 15Hp 3-phase inverter duty motor is specialized for generating large acceleration and maintaining extremely fast revolutions per minute. This is the perfect solution for equipment requiring powerful kinetic energy and continuous flow.

Technical Specifications

Model	160M
Shaft diameter	42 mm
Keyway	12 mm
Pilot diameter	250 mm
Flange diameter	350 mm
Frequency	5 ~ 50Hz
Dimensions	615mm * 320mm * 420mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Integrated into centrifugal pump stations, cooling water pumps, or priming pumps requiring high water pressure.
• Driving high-pressure air blowers, industrial drying fans, and boiler pressurization systems.
• Operating high-capacity grinding machines and high-speed rotary metal cutting saws.

3-Phase 11kW 15Hp 4-Pole Inverter Duty Motor (1,400 – 1,500 rpm)

Possessing extremely balanced rotational speed and traction parameters, the 4-pole 15Hp inverter duty motor is always the top choice in automated production lines. The compatibility rate of this device with common transmission systems is very high.

Technical Specifications

Model	160M
Shaft diameter	42 mm
Keyway	12 mm
Pilot diameter	250 mm
Flange diameter	350 mm
Frequency	5 ~ 50Hz
Dimensions	615mm * 320mm * 420mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Power station for screw air compressors, plastic pellet extrusion machines, and glue extruders.
• Providing traction for feed conveyor systems in animal feed and food processing plants.
• Installed in milling machines, CNC lathes, and precision mechanical machining centers.

3-Phase 11kW 15Hp 6-Pole Inverter Duty Motor (900 – 1,000 rpm)

The torque generated by the 6-pole 15Hp 3-phase motor has an impressively high inertia. The device is built to handle heavy-load systems without worrying about shaft jamming or voltage drop.

Technical Specifications

Model	160L
Shaft diameter	42 mm
Keyway	12 mm
Pilot diameter	250 mm
Flange diameter	350 mm
Frequency	5 ~ 50Hz
Dimensions	670mm * 320mm * 420mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Driving large-scale ore grinding shafts, stone crushers, and recycling shredders.
• Driving cement mixing tanks, industrial dough kneaders, and thick solvent agitators.
• Coupled with net-pulling winches, electric wire rope hoists, or medium-duty workshop overhead cranes.

3-Phase 11kW 15Hp 8-Pole Inverter Duty Motor (700 – 750 rpm)

With ultra-slow rotational speed and a large shaft diameter (48mm), the 8-pole 3-phase motor offers unmatched torsional load capacity. The product is often used to optimize systems, replacing bulky gearboxes.

Technical Specifications

Model	180L
Shaft diameter	48 mm
Keyway	14 mm
Pilot diameter	250 mm
Flange diameter	350 mm
Frequency	5 ~ 50Hz
Dimensions	740mm * 355mm * 455mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Applications:

• Directly driving sludge scraper systems and filter press sludge dewatering machines at water treatment plants.
• Operating thin steel rolling machines and high-intensity hydraulic presses.
• Equipped for seaport gantry cranes and ultra-heavy lifting overhead cranes requiring the lowest jerk level.

What Gearboxes Can the 3-Phase 11kW 15Hp Inverter Duty Motor Combine With?

The 15Hp 3-phase inverter duty motor can be combined with the following gearbox series:

• Worm gearbox: NMRV 150 gearbox, WPA, WPS, WPO, WPX, WPDA, WPDS, WPDO, WPDX gearboxes size 200 and size 250.
• Heavy duty gearbox: R-Series Inline Helical Gearbox, F-Series Parallel Shaft Helical Gearbox, K-Series Helical Bevel Gearbox, S-Series Helical Worm Gearbox, and Cycloidal Gearbox.

In addition, it can be combined with many accessories such as:

• Variable Frequency Drives from brands like INVT, Mitsubishi, etc.
• Pulleys and shaft couplings / chain couplings: 42mm, 48mm shafts.
• Electromagnetic brakes: Installable with brakes for capacities of 11kW, 15kW, 18.5kW, 22kW.

Detailed Technical Guide to Wiring a 3-Phase Electric Motor

Below is the standard technical wiring process that every technician needs to master.

• Open the terminal box protective cover: Use a screwdriver to unscrew the 4 fixing screws located on the top surface of the terminal box (placed on the motor body). When lifting off the cover, the terminal studs on the circuit board will be exposed.
• Connect the 3 phase cables: Take 3 cables from your 380V power source. Connect the cable ends directly to the 3 metal terminal studs on the circuit board marked with symbols U1, V1, and W1. Note that you should use pliers to firmly tighten the screw fasteners at the connection points to prevent arcing (sparking) when the inverter duty motor vibrates during operation.
• Power supply: After completing the connection and closing the protective box cover, proceed to supply 380V power back to the system. Observe the movement of the motor shaft to confirm that the device runs smoothly, stably, and without abnormal noise.

With excellent drive optimization and superior mechanical durability, the 3-phase 11kW 15Hp inverter duty motor will certainly be the solution for enhancing efficiency in large-scale manufacturing workshops. Features independent cooling characteristics, with no worries of thermal overload at low frequency ranges. To explore the internal components in detail, you are welcome to watch our assembly/disassembly video compilation or refer to Thanh Thai Motor’s electric motor video library.

Warranty, shipping and commitment policy at Thanh Thai Motor

Warranty up to 24 months

All electric motor products distributed by Thanh Thai Motor are covered by a genuine warranty for up to 24 months. Customers who purchase electric motors can completely rest assured with a transparent, fast, and professional after-sales policy.

Nationwide Shipping

Thanh Thai Motor supports nationwide shipping for all electric motors sold, ensuring safe and on-time delivery to every province across the country. Whether you are in the North, Central, or South, we are ready to serve you.

European Standard Quality – German Technology

Thanh Thai Motor sells electric motors manufactured with German technology, meeting European quality standards, ensuring durability, high efficiency, and stable operation for a long period – suitable for the strict requirements of industrial electric motors.

Competitive Prices – Attractive Offers for Dealers and Wholesale Customers

We commit to reasonable motor prices, offering the best electric motor products with high discount policies for bulk purchasers and distribution units. The more you buy – the better the profit.

Quality Commitment – Powerful Operation, Power Saving

Thanh Thai Motor sells electric motors wound with 100% copper wire, helping the machine run powerfully, consume less electricity, operate smoothly, and effectively reduce vibration – extending equipment lifespan. When purchasing an electric motor, prioritizing products with 100% copper core will be a wise decision, bringing long-term value.

At Thanh Thai Motor, we provide a full range of products, with various phases and capacities, such as:

• 220V electric motors (or 220V 1-Phase electric motors) are 1-Phase electric motors commonly chosen for many household appliances and light industrial equipment, offering convenience and efficiency.
• 380V electric motors are 3-Phase electric motors using three-phase power, commonly used in heavy industrial applications.

Full CO, CQ Certification Documents

Thanh Thai Motor provides the best quality electric motors. Each imported electric motor product from Thanh Thai Motor comes with a Certificate of Origin (CO) and a Certificate of Quality (CQ), meeting the requirements for large projects, constructions, and strict technical documentation.

Contact for Purchase

Do you need to buy an electric motor or seek advice on choosing an affordable electric motor that suits your needs? Contact Thanh Thai Motor immediately using the methods below:

• WhatsApp: +84966596219
• Email: codienthanhthai@gmail.com