156.OA02.2442C

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Part Status:	Active

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Power Relays, Over 2 Amps

Power relays are electrical switches specialized for regulating high-current and high-voltage electrical circuits. At the most basic, power relays can do the same job as a standard on/off light switch. However, power relays offer additional safety and efficiency and have become indispensable to the electrical industry. The model 156.OA02.2442C is a 12V power relay designed for use in systems with currents over 2 Amps.
Application Field
The 156.OA02.2442C power relay is suitable for a variety of applications due to its acceptably high current rating and 12V operation. The most common application is in automotive circuits. Currents of this size are often seen in automotive systems, such as headlights and starter motors. These applications often require a power relay due to the high current flow and voltage drop that can occur when these circuits are activated. The 156.OA02.2442C is also used in consumer and commercial systems where the current requirements exceed 2 Amps.
Working Principle
The 156.OA02.2442C works similarly to most other power relays. It uses a coil of wire wrapped around an iron core to create a magnetic field. This magnetic field is used to activate a set of internal contacts that then close or open the circuit. The electrical circuit is then either completed or opened, depending on the position of the switch. When the switch is in the ON position, the 156.OA02.2442C completes the electrical circuit and allows the current to flow through the wires. When the switch is in the OFF position, the 156.OA02.2442C opens the circuit and prevents power from flowing.
The 156.OA02.2442C also includes an additional safety feature to protect the circuit from overheating. When the relay is activated, an internal thermistor is also activated which monitors the temperature of the coil. If the temperature of the coil exceeds a certain threshold, the thermistor will cause the relay to open the circuit and shut off the current. This prevents the circuit from becoming too hot and potentially damaging or compromising components.
In conclusion, the 156.OA02.2442C power relay is an excellent choice for powering systems with currents in excess of 2 Amps. Its combination of safe operation, high current rating, and low cost make it a popular choice for automotive and consumer applications.

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