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Busck

A machine that’s down costs more than a new engine—in lost production, delayed deliveries, and rushed decisions.

Busck are designed to meet the demands of Nordic industry. Robust, flexible, and always ready to deliver. With one of the largest warehouses in the Nordic region, located in Kållered outside Gothenburg, we ensure that your operations never come to a standstill for longer than necessary.

Busck are used in everything from pumps and fans to conveyor belts and production lines—where operational reliability and uptime are critical.

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Electric motors for industrial applications – Busck and TC

Standard motors for pumps, fans, and material handling solutions in industrial settings. 

 

The TA and TC series are Busck’s standard ranges of industrial three-phase motors, designed to meet the highest standards of reliability and quality. 

Thermal protection is standard for motors rated at 0.75 kW or higher. 

TA Series – Aluminum (IE2/IE3/IE4/IE5)

Aluminum motor for standard applications in typical industrial environments. Removable and adjustable feet compliant with IEC 280 simplify installation in various positions, and standard drainage holes reduce the risk of moisture damage during downtime.

Available in 2-, 4-, 6-, and 8-pole versions starting at 0.12 kW. The series also includes high-power variants (C series) up to 22 kW.

We carry the following in stock:

IE2: 0.12–0.55 kW
IE3: 0.75–22 kW
IE4: 0.25–15 kW
IE5: upon request

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TC Series – Cast Iron (IE3/IE4)

The TC series complements the TA series and covers power ratings from 7.5 kW up to 710 kW. It features a robust cast-iron motor designed for heavy-duty industrial use, with an FL flange on the terminal box and lubrication nipples compliant with IEC 180. The series picks up where the TA series leaves off and is stocked in power ratings up to 710 kW for immediate delivery.

Available in 2-, 4-, 6-, and 8-pole versions starting at 7.5 kW. The highest-power models in the range are designated WY.

Available in IE3 (T3C) up to 55 kW and IE4 (T4C) above that.

Other engine series from Busck

Busck electric motor IE5

WE5 Series (Ultra Premium IE5)

WE5 represents the highest efficiency class. It is a synchronous permanent magnet motor that can be started without frequency control. This means that in applications that do not require speed control, it achieves unmatched efficiency.

 

This makes WE5 a unique choice for facilities looking to upgrade to maximum efficiency without investing in new inverter infrastructure.

 

The series covers the power range of 0.75–315 kW in standard IEC sizes from 80 to 355 and is available in 2- and 4-pole versions. All standard frame sizes are available—B3, B5, B14, B34, and B35. The WE5 is available in aluminum (WE5A) for applications where low weight is a priority, and in cast iron (WE5C) for heavier industrial use.

electric motor for a lumber dryer

T3W Series (IE3) Electric Motor for Log Dryers

Wood dryers place extreme demands on equipment. High temperatures, high humidity, and a corrosive environment quickly wear out standard motors. The T3W was developed specifically for these conditions and is based on Busck’s proven T3C frame.

 

The motors can withstand ambient temperatures of up to 90 °C and 100% humidity. The housing is made of cast iron and has been treated both inside and out to prevent corrosion. Since the motors are cooled by the airflow in the dryer, they are supplied without a fan or fan shroud. The T3W is equipped with thermistors (180 °C) in the winding as standard, SKF C4 ball bearings with high-temperature grease, and Speedi Sleeve stainless steel wear sleeves that protect the radial seal against corrosion. The nameplate is also made of stainless steel for reliable readability over time.

 

Power: 2.2–90 kW Number of poles: 4-pole (1500 rpm) or 6-pole (1000 rpm)

Busck

MS Series – Aluminum (IE1)

The MS series is Busck's line of three-phase motors designed for applications that do not run continuously and are therefore not subject to efficiency requirements.

 

The motors are made of aluminum and are available in IEC sizes ranging from 56 to 200; please check our stock search for current availability. The IE1 motors are rated for intermittent operation, such as S3–40% or S6–60%.

 

The MS series has received marine type approval from DNV and is therefore certified for marine applications. For operation at low speeds via a variable frequency drive, separate cooling fans are available for sizes 63–160. 

Questions & Answers About Electric Motors

In continuous operation, IE4 offers significant savings compared to IE3.

A 45 kW motor saves just over 2,500 SEK per year when operated for 8 hours a day—without you having to do anything other than choose the right motor the next time you make a purchase or replace a motor. For larger motors over 90 kW, the savings exceed 3,500 SEK per year per motor.

If you'd like to calculate the cost of your own application, use our IE calculator:
https://stock.busck.se/ords/busck/r/108/60-ie2-ie5

First, check the ventilation and cooling—blocked airways are a common culprit. Measure power consumption and compare it to the rated data. Verify that the thermistors and thermal protection are connected correctly. Recurring overheating may also indicate that the motor is undersized for the application or that the frequency converter is incorrectly configured.

Most motors up to size IEC 160 have sealed bearings and are permanently lubricated. From size IEC 180 and up, they are equipped with grease nipples for relubrication. The exception is the T3W lumber dryer motor, which has grease nipples starting at size 160, designed for demanding environments. Contact us for specific information about your model.

Early warning signs include unusual noises (scraping, whirring, or knocking from the bearings), increased vibration, or abnormal heat generation. Regularly monitor power consumption—a rise in current may indicate an increased load or mechanical problems. Bimetallic switches or thermistors provide a warning in case of overheating. For critical motors in continuous operation, vibration monitoring and regular insulation testing (megger test) are recommended as part of preventive maintenance.

See all frequently asked questions here.