IE3 Premium-Efficiency Motors

Lower running cost on continuous loads

IE3 premium-efficiency motors reduce energy losses and running cost on motors that run for long hours. NPE advises where the efficiency premium pays back through lower electricity cost.

For continuously running pumps, fans and compressors the reduced losses can repay the premium in a modest period; we help quantify the payback for your duty and tariff.

24/7 Emergency Support

Electrical service you can count on

When IE3 motor equipment fails, you need fast, reliable help from experienced engineers. We offer around-the-clock emergency support across Nairobi and East Africa — keeping your plant safe and powered, day or night. Whether it is an urgent breakdown or a scheduled repair, our team is ready to respond whenever you need us.

Cost and Estimates

What drives the cost

Higher efficiency class

IE3 losses are lower than IE2 across the load range, cutting running cost.

Fast payback on high hours

The premium repays through energy saving on continuously running loads.

VFD-ready options

Inverter-duty variants for variable-speed energy saving.

Same footprint

Frame and mounting compatible with standard-efficiency replacements.

Engineering Calculator

Motor Sizing & Starter Selection

Full-load current, protective device and starter method from motor rating.

Motor Rating kW Voltage & Phase

Power Factor Efficiency

Results

Full-Load Current

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Protective Breaker

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Recommended Starter

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Overload Setting

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* Preliminary sizing to IEC 60947. Confirm against motor nameplate before order.

Frequently asked questions

Is IE3 always worth it?

For long-running loads, usually; for intermittent duty the payback is longer. We assess it against your hours and tariff.

Does IE3 change the starter?

The starting characteristics differ slightly; we confirm the starter and protection remain coordinated.

Can I retrofit IE3?

Yes, IE3 motors share standard frames and mountings so they drop into existing bases.

IE3 with a VFD?

An inverter-duty IE3 motor with a VFD gives the best energy performance on variable loads.

When in doubt, put safety first

If you are ever unsure or feel unsafe, do not take chances — call a licensed engineer. Safety always comes first. Contact us for verification, specification and installation support.

+254 0737-944-014

Speak to our experts