The IP (ingress protection) number is based on the international IEC system for rating enclosures. An IP-44 rating is roughly equivalent to NEMA 12 for dust and water resistance. IP-44 means that the gearmotor or motor housing is protected against solid objects greater than 1 mm, and against splashing water. Our stock motors and gearmotors are typically rated IP-20 to IP-40. If you want to increase the ingress protection rating of our gearmotors and motors to IP-44, you can install our optional terminal box kits -- models 0984, 0985 or 0986. We also offer boot kits for our PMDC 24A, 33A and 42A motors.