How is an open drip proof motor characterized?

An open drip proof motor is characterized by having holes in the motor housing specifically designed to allow for air cooling while still providing a certain level of protection against moisture and dust. The design includes openings that permit free airflow, which helps to dissipate heat generated during operation. This feature is essential for maintaining the efficiency and longevity of the motor. The construction aims to prevent the entry of larger particles and some water droplets but does not provide complete sealing like fully enclosed motors.

This design is advantageous in environments where moisture and contamination risks are minimal but cooling is essential. In contrast, other options describe motor types that either provide sealed protection or are suitable for applications not related to standard open drip proof specifications.