Brake Motor 3kW 4Hp

The 3kW 4Hp brake motor is an electric motor with a power of 3kW (equivalent to 4 horsepower), specially designed with an electromagnetic brake combined at the rear to help the motor stop quickly and prevent movement. Classified as an electric motor under 3.7kW, it is widely applied in various fields such as cargo lifts, overhead cranes, conveyors, etc.

What is the overall design of the 3kW 4Hp brake motor like?

The brake motor is made of cast iron and aluminum housing materials, coated with a blue electrostatic paint layer, capable of resisting external agents such as rain, dust, and corrosive substances, etc. A cooling fan is attached to the rear of the motor to help maintain a stable temperature throughout operation.

In particular, the motor is also equipped with an electromagnetic brake, helping the motor come to a complete stop quickly and safely, ensuring machinery operates properly and guarantees user safety.

What is the structure of the 3kW 4Hp brake motor?

The 3kW 4Hp brake motor consists of the following components:

• Stator (Stationary part): The stator is the stationary part of the motor, playing the role of generating a magnetic field, consisting of copper windings wound around a steel core, wrapped with insulation paper.
• Rotor (Rotating part): The rotor is the part that rotates around the motor shaft. When the stator generates a magnetic field, the rotor experiences magnetic force and rotates around the motor shaft, thereby producing torque.
• Electromagnetic brake: The electromagnetic brake is attached to the rear of the motor. When the motor stops operating, the brake is activated to bring the motor to a complete stop quickly and safely.

What types of 3kW 4Hp brake motor are available?

The 3kW 4Hp brake motor line provides four basic RPM speed ranges, compatible with various transmission systems. Detailed technical specifications are presented right below.

3kW 4Hp 2-pole Brake Motor (2,800 – 3,000 rpm)

The device provides high rotational speed, serving mechanisms that require agile response and decisive braking stops at high RPM.

Technical specifications:

Code	100L
Shaft diameter	28mm
Keyway	8mm
Flange diameter	250mm
Weight	27kg
Dimensions	385mm * 215mm * 270mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Practical applications:

• Small-scale industrial wood cutting machine systems needing immediate saw blade locking.
• Automatic blank pushing mechanisms with high working speed in mechanical processing workshops.
• Spindle rotating edge cutting blades requiring braking immediately upon cycle completion.

3kW 4Hp 4-pole Brake Motor (1,400 – 1,500 rpm)

The common speed delivers durable pulling force along with smooth braking capability for medium loads.

Technical specifications:

Code	100L
Shaft diameter	28mm
Keyway	8mm
Flange diameter	250mm
Weight	29kg
Dimensions	385mm * 215mm * 270mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Practical applications:

• Goods conveyor systems requiring stopping precisely at barcode scanning stations.
• Food hoists lifting between floors in processing facilities.
• Quantitative packaging machines requiring precise shaft cutoff for finished product weight.

3kW 4Hp 6-pole Brake Motor (900 – 1,000 rpm)

The unit features a reduced RPM to increase pulling power, suitable for braking material loads with high inertia.

Technical specifications:

Code	132S
Shaft diameter	38mm
Keyway	10mm
Flange diameter	300mm
Weight	29kg
Dimensions	470mm * 275mm * 345mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Practical applications:

• Cable winding shafts of equipment lifting winch assemblies in medium-scale warehouses.
• Inclined conveyor belts transporting construction materials requiring anti-reverse drift during power outages.
• Heavy bucket elevator pulling mechanisms at small concrete batching plants.

3kW 4Hp 8-pole Brake Motor (700 – 750 rpm)

This slow-running machine line generates excellent initial pulling force accompanied by a robust shaft locking mechanism.

Technical specifications:

Code	132M
Shaft diameter	38mm
Keyway	10mm
Flange diameter	300mm
Weight	29kg
Dimensions	510mm * 275mm * 345mm
Mounting type	Foot mount (B3), Flange mount (B35, B5, B14)
Protection class	IP55
Insulation class	Class F

Practical applications:

• Workshop gantry crane systems requiring slow travel speeds and safe positioning.
• Fixed turntables for automatic welding parts requiring high rotational angle accuracy.
• Operating platform lifting and lowering mechanisms in electronic equipment assembly workshops.

Which gearbox does the 3kW 4Hp brake motor combine with?

To fine-tune the transmission ratio, the 3kW device is often coupled with specialized medium-load gearbox systems.

• Heavy-duty helical gearbox: Models K57, K67 or R57, R67 oil-immersed, specialized for conveyor systems with impact risks.
• Cast iron worm gearbox: Models WPA, WPS size 80 or size 100 serving basic winch lifting mechanisms.
• Drive coupling: It is recommended to use flange couplings or rubber buffer couplings to eliminate counter-shock mechanical vibrations when the brake is activated.

Instructions on how to wire the brake motor

The 3-phase motor with electromagnetic brake needs to be wired correctly according to the diagram so that the braking system operates properly when starting and stopping the machine. Before operating, it is necessary to understand the basic structure of the motor and the electromagnetic brake unit.

Step 1: Check parameters

Check the parameters on the motor nameplate including voltage, power, and rated current. For a motor with an electromagnetic brake, it is also necessary to check the brake coil voltage to select the appropriate power source and wire cross-section. Watch the electric motor video right away which has content on how to read these parameters.

Step 2: Open the terminal box

Remove the terminal box cover to observe the internal wires. Inside, there are usually stator wires, power terminals, and a rectifier used for the electromagnetic brake.

Step 3: Identify connection terminals

Based on the motor’s wiring diagram, identify the U, V, W terminals and terminals related to the brake circuit. Do not connect without clearly defining the function of each wire terminal.

Step 4: Connect power wires

Connect the power wires to the U, V, W terminals according to the diagram. After connecting, recheck the tightening and contact points of the wires to avoid looseness or poor contact.

Step 5: Check operation

Supply power and check that the motor runs and the electromagnetic brake operates correctly. If the brake does not release or the motor operates unstably, recheck the wiring and power supply.

In addition to wiring content, you can refer to Thành Thái Motor‘s comprehensive video section. This is a page containing many videos about electric motors, how to test and handle errors, not a standalone wiring instruction video.

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