AQW280S

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AQW280S is a solid state relay (SSR) manufactured by Panasonic that is suited for many different applications. SSRs are designed to allow a small DC control voltage to control a larger alternate current. With the AQW280S, the AC voltage tolerance is 0-280V and the total maximum load current is 7.5A. This SSR has zero cross turn on and off that improves switching speed, reduces electrical noise and extends the life of the device.

The AQW280S is ideal for many types of applications including motor control, HVAC, medical equipment, traffic control, lighting and home automation. This device is a direct replacement for low power mechanical relays since it requires no physical contact or arc flash protection and requires less space. Additionally, its zero crossing technology also helps to reduce extreme or unexpected current or voltage fluctuations on the AC output side.

The AQW280S also has various features that make it a great SSR, such as overvoltage protection, overcurrent protection, reverse voltage protection, AC driver circuit protection and long life operation. Additionally, its LED indicator can be set to light green under normal operating conditions, amber when a short warning is detected, and red when an overload has been detected. Furthermore, the AQW280S is compact and easily mountable in many spaces or environments.

The AQW280S works by using a junction gate fusible resistor to control the voltage regulator circuit. The junction gate fusible resistor, usually referred to as a JFET, is a type of MOSFET that uses a constant current source to regulate the gate to drain voltage by applying a voltage to the gate. The voltage regulator then controls the power flow on the AC side of the SSR, allowing the current to turn on and off as needed.

The AQW280S also has a snubber circuit, which is a type of power surge suppression circuit that helps protect the SSR against voltage spikes that occur when switching current. Inside the snubber circuit, capacitors and resistors are used to protect the relay from overvoltage and overcurrent conditions. The snubber is then connected to the control resistor terminal of the SSR, ensuring a safe and stable operation.

In conclusion, the AQW280S is an ideal solid state relay for any application that requires an efficient and reliable means of controlling AC power. Its simple and reliable design and construction makes it an ideal replacement for many mechanical relays, and it is easy to install and maintain. Additionally, its snubber circuit and overcurrent protection features make it an ideal choice for anyone looking for a reliable SSR.

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