ALD118

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Power relays, over 2 Amp: ALD118 Application Field and Working Principle

Power relays are a type of electrical component, which act as an electromechanical switch to open or close an electrical circuit. Generally, these components feature two circuits: a control circuit, which is used for switching on and off, and a load circuit, which is used for powering a load. The ALD118 series of power relays, developed by OMRON Corporation, is a series of power relays that feature an ampacity of over 2 amps. This article provides an overview of the ALD118 application field and underlying working principle.

Application Fields

The ALD118 series of power relays have several applications, especially in industrial and consumer goods. OMRON Corporation states that these relays are suitable for use in wiring a range of motors, pumps, actuators and solenoids. Other common applications include voltage conversion and DC motor control, such as in DC speed control equipment. Additionally, these relays also provide a convenient option for power supply control and switching. With an ampacity of over 2 amps, ALD118 power relays can easily handle the load of most motors and pumps, delivering excellent performance in an open circuit.

Working Principle

The ALD118 series of power relays is based on a basic electromechanical design, which consists of several components. The core component is the contact, which is a metal bridge that is used to bridge two circuits and allow electricity to flow when the relay is activated. A coil holds the contact, and then it is released when current is supplied to the coil. The current is supplied to the coil through the control circuit, whose state is determined by a switch. When the switch is turned on, the current flows from the control circuit to the coil, creating a magnetic field that opens the contact and allows electricity to flow through the load circuit. Conversely, when the switch is turned off, the current flow stops and the contact closes, preventing electricity from reaching the load circuit.

Conclusion

The ALD118 series of power relays from OMRON Corporation is ideal for use in a variety of applications, ranging from the control of DC motors to the switching of power supplies. This series of power relays is also based on a straightforward electromechanical design, consisting of several main components: a contact, a coil and a switch. With an ampacity of over 2 amps, the ALD118 series of power relays can easily handle the load of most motors, pumps, and other devices with reliable performance.

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