IE4 represents the super premium efficiency class in IEC 60034-30-1 and sits one step beyond IE3. For facilities where energy cost weighs heavily on the budget, IE4 pushes losses lower still and grows the annual saving. As a manufacturer-supplier that builds the IE4 series on its own production line and delivers from stock, HEM Motor offers this class with both technical and commercial advantages.
Our IE4 range spans 0.25 kW to 355 kW, with a Ø100 mm shaft diameter on the largest frame. The motors are built with IP55 protection and Class F insulation, and slip near full load is about 4%. Paired with a frequency inverter, system efficiency rises further, yielding extra savings in variable-load applications.
Although the initial cost is slightly above IE3, in continuous applications the gap is closed by savings. For top efficiency see our IE5 series, and for harsh environments our cast iron body models. For the right IE4 selection and a quote, call +90 (532) 345 49 86 or use our contact page.
When ordering an IE4 super-premium efficient electric motor or replacing an existing motor, reading the nameplate (label) in full is the strongest barrier against an incorrect deli... More Details
When an IE4 super premium motor fails, the first question is usually the same: "Should I rewind it or buy a new one?" On a standard motor, rewinding is often a reasonable option; b... More Details
However safely an IE4 motor runs at a sea-level plant, running that same motor at the same power at a mine or highland facility at 1500 metres may not always be possible. The reaso... More Details
If you run your IE4 motor with a variable frequency drive (VFD) to produce continuous full torque at low speed, the fan on the motor's own shaft end may let you down halfway. In a ... More Details
In most industrial applications, 2-pole (3000 rpm) and 4-pole (1500 rpm) motors are standard; however, some jobs by their nature demand low speed. Large-diameter fans, slow mixers,... More Details
A screw air compressor is one of the longest-running pieces of equipment in most facilities; it often runs continuously at full load 16–24 hours a day. For this reason, selecting t... More Details
Plastic extruders and continuous process lines are among the most demanding applications for an electric motor: the motor turns 24 hours a day, often seven days a week, at a high a... More Details
Paper and textile factories are, by the nature of their production, facilities that run 24/7 without interruption. A paper machine or a spinning line turns without stopping all day... More Details
Air handling units (AHUs) and ventilation fans account for a significant share of a building's energy consumption and often run for most of the day, even 24/7. This continuous oper... More Details
IE4 Super Premium motors carry a high efficiency value on their nameplate; but that value belongs to the condition where the motor runs near full load. In real facilities motors of... More Details
Can there be two different motors in the same efficiency class? Yes. The IE4 Super Premium efficiency class can be achieved both with classic asynchronous (squirrel-cage) motors an... More Details
"Should I switch to an IE4 motor, or is IE3 enough?" is one of the most frequent questions businesses ask in this period of rising energy costs. The correct answer is not always "t... More Details
30 and 37 kW sit right in the middle of the most sought-after mid-to-upper power band in Turkish industry. From pump stations to compressor units, from large fans to conveyor drive... More Details
In high-speed applications such as centrifugal pumps, fans and blowers, 2-pole 3000 rpm motors are the standard. But choosing the right power in these applications is more delicate... More Details
When a conveyor stops, the load must not slide back; a crane must hold the suspended load safely; on an emergency stop the motion must be cut instantly. These three needs are met n... More Details
Selecting an electric motor in solar and renewable-energy facilities requires different logic than in classic grid-fed plants. In a facility fed by solar panels, wind or hybrid sys... More Details
When looking for a motor for a low-speed, high-torque application such as a conveyor, mixer, screw or hoist, the decision has two layers: you must choose both the right reducer and... More Details
When buying an IE4 super premium motor, the high efficiency value you see on the nameplate is actually the result of a battle against losses taking place inside the motor. Every el... More Details
Converting the entire motor fleet to IE4 at once is neither necessary nor budget-feasible for most businesses. The right strategy is to start the IE4 investment with the motors tha... More Details
When a motor in your facility fails or you are buying a new IE4 high-efficiency motor to upgrade the efficiency class, the most critical question is: How do I choose the equivalen... More Details
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