The type 8442 non-contact current sensor is suitable foe the monitoring of higher power currents up of to around 800 A (higher values can be handled in a special version). A zero-potential contact (make-type contact) switches when the current values that had been set at the factory are reached.
The current sensor is hermetically sealed and can be used outdoors. No auxiliary power is needed for its operation.
The current sensor consists of an inert gas contact that is sensitive to magnetic fields, an insulating plate and a defined piece of conducting material, all encapsulated in a plastic housing. The switching point that is desired by the customer is set during manufacture.
The conductors that are required for setting can be set up according to the wishes of the user.
Data sheet [PDF]
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