This video about How to make connection of KEY Card Switch | key tag switch wiring with contactor
A key card switch typically refers to a device or system that uses a key card, often equipped with a magnetic stripe or RFID (Radio-Frequency Identification) technology, to control the activation or deactivation of electrical power or other functions. In the context of hotels, for example, key card switches are commonly used to control the lighting, air conditioning, and other electrical devices in guest rooms.
Here's how it typically works:
1.Insertion or Swiping: The key card is inserted into a slot or swiped through a card reader attached to a switch.
2.Authentication: The system reads the information stored on the key card. This information might include a unique identifier or code associated with the guest or room.
3.Activation/Deactivation: If the key card is valid, the switch activates the electrical power or other designated functions. When the card is removed, the power may be deactivated to save energy.
The key card switch system is often used as an energy-saving measure in hotels and other facilities since it ensures that power is only consumed when guests are present in the room. It also provides a level of security by restricting access to the room to individuals with valid key cards.
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