Choosing The Right Electric Motor Type

What's wrong with the Electric Motor?

The enclosure also protects other equipment and personnel from the high temperatures and heat generated by the motor, improving the safety and performance of nearby equipment.

The motor housing also ensures that your AC motor (if this is the case) is effectively cooled, which will affect performance. The enclosure also keeps noise levels to a minimum, helping to create a comfortable and productive work environment.

Type of motor housing

Drip Proof (ODP)

Drip Proof (ODP) housing prevents droplets from entering the motor from vertical angles up to 15 degrees. These enclosures allow outside air to circulate freely through the motor windings, effectively cooling the motor. These enclosures are primarily intended for dry, clean indoor applications and environments.

Totally Enclosed Fan Cooling (TEFC)

The TCF motor housing is closed, thus preventing internal and external mixing. But the frame is not completely sealed or waterproof. An external, shaft-mounted fan at the rear of the motor blows air over the outside of the motor frame to cool it. This versatile housing type is commonly used for fans, pumps, compressors, and belt drives.

Totally Enclosed Water Cooled (TEWAC)

TEWAC motor housings use heat exchangers to keep the motor cool efficiently. Heat exchangers contain fluids such as freshwater that absorb heat from circulating hot air.

Totally Enclosed Non-Ventilated (TENV)

TENV motor enclosures are very similar to TEFC types, except that they do not have a fan cooling system and they rely on the surrounding air to keep the motor temperature stable. They are a bit finicky because they require more TLC. For example, you need to avoid frequent stops and starts, which generate heat inside the motor windings. Therefore, this type of housing is more common on smaller motors.