Technical information 

Hoyer IE3 electric motors are manufactured according to the efficiency class system specified under IEC 60034-30. Their high quality, reliability and performance are well documented.

The motors are asynchronous, low voltage three-phase TEFC motors. Type HMA3 (aluminium) size 80-132 and HMC3 (cast iron) size 160-400 are supplied with SKF or similar premium bearings and 3xPTC in the windings. Motors in size 80-180 have closed bearings greased for life. All Hoyer IE3 motors have a locked bearing in the drive end as standard.

All IE3 motors are provided with blind caps in all supply connections and are IP55 as standard, prepared for drain holes and painted with RAL 9005 low gloss.

400 V Y – Hoyer IE3 motors ≤ 3 kW
400 V D – Hoyer IE4 motors ≥ 3 kW

Other voltages are supplied on request.

Our range of IE3 motors

Hoyer's IE3 motors are designed to be versatile, capable of operating in diverse industrial environments. A feature of a Hoyer IE3 motor is the compatibility with VFD systems, which allows for variable speed control, further enhancing their efficiency and adaptability.

Understanding the efficiency of IE3 motors is crucial for businesses looking to optimise their operations. IE3 motors are designed to operate with a higher efficiency level, meaning they convert a greater percentage of electrical energy into mechanical energy.

This feature is particularly beneficial in applications where motor speed needs to be precisely controlled, leading to improved process control and energy savings. Our range of electric motors includes various IE3 models engineered to provide optimal performance in specific applications, ensuring that every industry can find a suitable IE3 motor solution from Hoyer.

Key factors to consider when selecting an IE3 motor

When selecting an IE3 electric motor, it's crucial to consider specific operational requirements.

First, assess the load profile: IE3 motors are most efficient under constant, high-load conditions. Evaluate the compatibility with existing systems, particularly if integrating with a Variable Frequency Drive (VFD). Also, consider the environmental conditions, as IE3 motors have specific cooling and ventilation needs.

Lastly, factor in the total cost of ownership, not just the initial purchase price, as IE3 motors often offer long-term savings through reduced energy consumption.

These considerations ensure the selected IE3 motor optimally aligns with your operational needs and efficiency goals. Are you looking for an electric motor with the highest efficiency and energy savings, the IE4 electric motor provides unmatched effectiveness.

Why are IE3 motors the right choice for your industry?

IE3 motors are a smart investment for modern industries and are often used in marine and wind applications due to their blend of energy efficiency and operational excellence. Key benefits include:

• Energy savings: Reduced energy consumption leads to lower electricity bills.
• Operational efficiency: High performance under varied load conditions.
• Versatility: Suitable for a wide range of industrial applications.
• Reduced carbon footprint: Contributes to environmental sustainability.

Hoyer's IE3 motors are designed to deliver these benefits consistently, making them an ideal choice for industries looking to optimize their operations while reducing their environmental impact.