KSB Pump-Water Pump-Oil Pump KSB SuPremE® in IE5* – The World‘s Most Efficient Magnet-less Pump Motor Energy savings of 70 % or more are possible The speed-controlled KSB SuPremE® motor works like an energy diet: The large efficiency gain of up to 60 % due to speed control is increased even further by an energy saving of up to 15 % in the motor alone.. Future-proof with efficiency class IE5 Meets the IE5* efficiency requirements. Sustainable Built completely without magnetic materials, its total environmental footprint is significantly smaller than that of permanent-magnet synchronous and asynchronous motors. Robust The use of non-critical, durable materials, as well as the fully matured reluctance principle make the KSB SuPremE® motor* a ...