H01H43/30 - CPC Classification

Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action

• H01H43/301 » {based on the expansion or contraction of a material } 0
• H01H43/308 » {based on the change of electrical properties, e.g. thermistors } 0
• H01H43/309 » {based on the change of magnetic properties } 0