Open Drip Proof Motors(ODP) are motors which are used in applications where there may be dripping water. These motors are covered by a metal enclosure which ensures that any water which drips will not flow into the motor.
Drops of water which fall at an angle of 15% will be caught by this enclosure. Open drip proof motors usually have a fan for cooling the motor. These motors are relatively inexpensive and used widely in the industry.
Open Drip Proof motors are used in clean, dry environments. Sometimes, the air from the blower is made to pass through a filter before entering the motor