K81C345 Relays

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The K81C345 is a power relay with a capability of over 2 Amps, developed by OMRON Electronics. It is a small relay that is designed to be used for controlling small, low-power applications, such as air conditioners, refrigerators, and lighting systems. With its small size and low power requirements, it is an ideal choice for these types of applications.

The K81C345 is a single-pole single-throw (SPST) switch consisting of a switch contactor, a coil, and a switching current sensor. The switch contactor contains two sets of contacts - one set for operation and one set for diagnosis. It also contains a variable pot to adjust the contactor\'s resistance. The coil is responsible for providing the necessary force to move the contacts.

The switching current sensor automatically monitors the current flowing through the switch contactor and is used in conjunction with the contactor pot to ensure that the contactor does not exceed its rated current rating. If the current reaches the maximum rating, the sensor will trip the contactor and cut off the power to the switch contactor.

The K81C345 is designed to be used in a wide range of applications, including machines, air-conditioners, lighting systems, and industrial systems. It can be used to control the temperature of equipment, prevent overloads in systems, switch on/off power sources, and provide remote control for machines. In addition, it can also be used in a variety of other applications, such as HVAC systems, alarm systems, outdoor lighting systems, medical equipment, and home automation systems.

In terms of working principle, the K81C345 is quite simple. When the switch is activated, it triggers the contactor to move, thus changing the electrical state of the device. The contactor then closes the switch, and the current is then passed through the coil, resulting in an electro-motive force (EMF) within the coil. This in turn acts as an electric current, changing the state of the relay.

The K81C345 is an efficient and reliable power relay that is well suited for a variety of applications. It is low power, small in size, and can be used to efficiently control many types of appliances and systems. Its ability to monitor current ensures that the contactor does not exceed its rated current rating, while its variable pot adjusts the contactor\'s resistance for optimal performance. This makes it an ideal choice for those seeking a reliable, cost-effective power relay for their needs.

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