MLE Permanent Magnet (ECM) integrated VFD/motor in Grundfos BoosterpaQ Booster Pump Packages
Grundfos announces the release of the new MLE (integrated VFD/motor) for Hydro MPC BoosterpaQ systems available beginning on May 1st, 2017.
The MLE will include Permanent Magnet (ECM) motor technology and covers the 5, 7.5, 10 & 15HP range in 3x460V.
The new MLE motors exceed IE5 motor efficiency standards, set by the International Electrotechnical Commission, currently the highest efficiency level worldwide for electrical motors. Premium efficient motors are currently rated IE3. The new Grundfos MLE motors represent two levels above NEMA Premium Efficiency and have combined efficiency (motor + drive) above NEMA Premium Efficient motor alone.
The improved MLE motors are Grundfos’ most energy efficient yet; designed especially for variable speed operations, optimized for pump applications and high part-load efficiency. Hydro MPC BoosterpaQ systems utilize advanced controls with the capability to save energy with functionality to stop pumps during low flow and run in a more economical mode, stage pumps on when it is more efficient, and lower setpoint pressure during low flow periods of time when pipe friction loss is less.
In typical domestic water pressure boosting applications, this can save 20-30% compared to competitor’s systems. The MLE Permanent Magnet (ECM) motors allow for an additional increase in savings by 7-10%, resulting in potential 40% energy savings over competing pump packages. With the addition of this motor and the advanced controls, Hydro MPC BoosterpaQ systems are, by far, the most efficient pumping system in the industry.