Maxeff motors use electromechanical contactors and a sequence of internal automated connections to power the built-in electrical and mechanical soft start. Maxeff, combined with Maxeff Soft Start, divides itself by 3 from the moment of start. 1/3, 2/3 and then full torque. No external or additional electronic components required.

This allows Maxeffs motor to receive grid power at only a third of its nominal HP, roll automatically to 66%, and then to full HP. This unique feature reduces the inrush current and allows Maxeff motors to ramp up smoothly and progressively. This revolutionary soft start sequence allows Maxeff motors to be started from generators half the size required by standard motors.

Soft start also allows you to start, stop, and restart your Maxeff motors as often as needed without overheating or incurring excessive peak demand charges. This option is available on all Maxeff motors. All you have to do is request it, and everything will come in a single enclosure along with your Maxeff motor. You can also use this same unit as your complete motor control center. No additional components needed.

Maxeff two-speed motors come in speed ranges of 3600/1800 rpm, 1800/900 rpm, 1200/600 rpm, and 900/450 rpm. This can be constant torque or constant HP design.

In applications like condenser fans, a two-speed motor can be easily controlled without VFD or any electronic components. The speed switch system can be controlled by PLC or manually. When you don’t need full air movement, you can switch to low speed then back to full speed as your systems require it. This allows for enormous energy savings.

Normally, low-speed motors are not used much because of their poor power factor. Maxeff low-speed designs have the same efficiency and a higher power factor than any market premium efficiency high-speed motor. Use them to increase your airflow anytime you can, saving energy.