Permanent Magnet (ECM) Pump Motors to 15 Horsepower
In 2017, Grundfos released it’s new line of integrated VFD motors with Permanent Magnet (ECM) motors on all HYDRO MPC-E booster pump packages up to 15 HP. Since then, it has released ECM motors to 15HP on PACO LCSE base-mounted end suction pumps, PACO VLSE inline pumps as well as Grundfos CRE inline multi-stage pump, Grundfos TPE inline single-stage pumps and Grundfos CME end suction multi-stage pumps for 460V, 3-phase power.
Grundfos has now expended the line for low-voltage 208-230V, 3-phase power for all integrated VFD pumps from 1.5HP to 7.5HP for all 3600 RPM models. When pared with MAGNA3 circulator pumps, Grundfos continues to expand it’s industry-leading portfolio of integrated VFD and permanent magnet motors.
Permanent Magnet Motor Technology
Traditional AC motors rely on the motor stator to induce current into the motor rotor in order to create the rotor’s magnetic field, which causes the motor to turn.
Permanent magnet motors utilize powerful rare-earth magnets in the rotor. With a permanent magnet motor, input current is only required to create the magnetic field in the stator. The rotor requires no external current. Eliminating the need to induce current into the rotor allows for significant energy savings when operating an electric motor.
Grundfos MLE Motor Advangeges
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 MLE represent two levels above NEMA Premium Efficiency and have combined efficiency (motor + drive) above NEMA Premium Efficient motor resulting in additional energy savings of 7-10% over a traditional AC motor used with a variable frequency drive (VFD).
The Grundfos MLE motor incorporates impressive capabilities and upgrades. Some of these key capabilities are:
- Single point power connection with integrated VFD to speed installation
- Onboard Graphical User Interface
- Integrated graphical control panel with flow, kW, temperature interface and outputs via Modbus, BACnet, LON and others
- Built in heat energy meter as well as flow limiting functions which eliminate the need for a pump throttling or control valve
- Grundfos GO capability to communicate and control the MLE via your cell phone
For More Information Contact
Commercial / Industrial Engineered Systems, Engineers, Contractors
Commercial / Industrial End Users, Western Indiana
Commercial / Industrial End Users, Eastern Indiana