AHN11024 Application Field and Working Principle

The AHN11024 is a power relay designed to switch power loads of up to 2 amps. It is well-suited for use in a variety of applications, such as controlling motors, switching between multiple sources of power, and providing an electrical isolation between a low-level input signal and a high-level output. Its robust design also makes it suitable for use in demanding, high-temperature environments.

Typical Applications

The AHN11024 is commonly used in a wide variety of applications, mainly those involving control or switching of power loads. These applications include motor control, non-isolated power conversion, appliance motors, protection circuitry, and AC/DC and DC/DC switching. It can also be used to provide safety and protection for isolated systems such as those found in the medical industry.

Connections

The AHN11024 features 4 connections, two on the outside for power input/output, one in the middle for control, and one for ground. The power connections are rated for up to 2 amps and can be used for either AC or DC application. The control input connection accepts DC signals from 3-12VDC and is designed for a minimum load of 10 mA.

Working Principle

The AHN11024 power relay relies on the tried and trusted principle of electromagnetic induction. When the control input is connected to the power supply, the coil inside the relay is energized, creating a magnetic field that causes the contact spring to close the circuit. When the control input voltage is removed, the contact spring returns to its original position, opening the circuit.

Safety Features

The AHN11024 features solid-state protection against excessive current and voltage as well as built-in fusing. Its robust design also allows for a maximum operating temperature of up to 65℃. It meets CSA, UL, and several other UL/CSA safety requirements and is CE Mark approved.

Conclusion

The AHN11024 is a reliable, robust power relay designed to switch power loads up to 2 amps. With its extensive safety features and UL/CSA approvals, it is well-suited for use in a wide range of applications, including motor control, protection circuitry, and AC/DC and DC/DC switching.