Ingression Protection (IP)

A two-digit number established by the International Electro Technical Commission, is used to provide an Ingress Protection rating to a piece of electronic equipment or to an enclosure for electronic equipment. The protection class after EN60529 are indicated by short symbols that consist of the two code letters IP and a code numeral for the

Intermittent Duty

Solenoid ON for only a short time, usually not more than 2 or 3 minutes, then followed by an OFF time which is normally at least as long as the ON time. This ON time and OFF cycling can be repeated continuously over the total life of the solenoid.

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