AQY412SX Relays

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Solid State Relays (SSR) are reliable, efficient, and low power controlling components. A typical SSR uses a thyristor, triac, diac or other semiconductor device as the switch. It switches a small control signal into a large power signal. Depending on the characteristics of the individual component, the switching load can range from a few milliamps to several amps.

The AQY412SX is a type of solid state relay. It is a three-phase or single-phase SSR based on AC output. It is widely used in motor control, temperature control, industrial automation, and lighting control applications. It is based on MOSFET technology with an isolation model of up to 4000V. Its output device is a three-phase thyristor.

The AQY412SX solid state relay is equipped with a 25A zero voltage crossing unidirectional triac output, with a gate current of 7mA max. It also has a current limiting protection circuit that stops the triac from overloading when an input malfunction occurs. It has a response time of 1.5ms and an on state voltage drop as low as 1.6V.

In addition, this solid state relay is also equipped with a built-in thermal protection circuit. This circuitry monitors the triac gate current and automatically shuts down if overheating occurs. The AQY412SX also has LED indicators that can be used to monitor the ring circuit and signal the user to replace the triac before it overloads or fails to start.

The AQY412SX consists of an input stage and an output stage. The input stage uses two identical grounded electrodes and an insulated return electrode. When a signal is applied to one of the input electrodes, a current flows and triggers the thyristor. The thyristor then opens and closes, switching the current and generating a voltage across the output contacts. This voltage then passes through the load and completes the control circuit.

The AQY412SX is rated for a maximum load of 25A at a voltage of 220V. It is also designed to maintain a voltage drop of less than 1.6V during on states. The AQY412SX has applications in areas such as motor control, temperature control, lighting control, power conversion, and industrial automation.

In summary, the AQY412SX is a high-performance solid state relay based on MOSFET technology. It provides reliable and efficient control, with a maximum load of 25A, and an isolation model of up to 4000V. It has a response time of 1.5ms, and a thermal protection circuit to prevent overheating. Typical applications include motor control, temperature control, lighting control, power conversion, and industrial automation.

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