LH1502BAC

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Solid State Relays (SSR) are devices that are used to switch or regulate electric power. They are considered to be the most reliable form of electrical relays, as they have no mechanical parts, and are often used in applications with high temperatures or places where vibration might be an issue. The LH1502BAC SSR is part of the line of industrial SSR\'s by Littelfuse, and is designed to provide a reliable, durable and long-lasting solution for a variety of applications.

The LH1502BAC is rated for use with AC load currents up to 7.5A and can be used in temperatures ranging from -25 degrees C to 85 degrees C. It utilizes a zero-cross MOSFET switching circuit with reverse voltage protection, which ensures that the power switching devices will not be damaged by sudden changes in voltage applied to the load. Additionally, the SSR has an LED indicator to show when the load power is on, making it easy to determine the status of the load without having to physically check it.

With regards to its application field, the LH1502BAC SSR is ideal for switching large power loads, such as motor controllers, electric heaters, lighting systems, and other industrial equipment. It has a wide range of input voltage options (ranging from 12-280Vac), which allows it to be used in a variety of applications where the voltage is variable. It is also UL, cUL, CE approved and complies with applicable RoHS standards, making it a reliable and safe choice for use in industrial and commercial areas.

The LH1502BAC is also well suited for controlling the temperature of an electric heater. Its high load current rating and wide temperature range make it the ideal choice for applications in areas where temperatures can fluctuate between -25 degrees C and 85 degrees C. Additionally, the built-in reverse voltage protection ensures that any sudden changes in input voltage do not damage the power switching devices.

In terms of its working principle, the LH1502BAC utilizes a zero-cross MOSFET switching circuit. This circuit utilizes high voltage semiconductor devices to carry the load current and to switch the power to the load. After the input voltage rises past the switch-on threshold voltage, the SSR\'s MOSFET switching circuit turns on and applies power to the load. The power stays on until the load voltage drops below the switch-off threshold voltage, at which time the circuit switches off and the load power is no longer applied.

The LH1502BAC is an industrial, UL-approved SSR that is designed to provide a reliable and durable solution for large power loads. Its application field includes the control of electric heaters, motor controllers, lighting systems, and other industrial equipment. The LH1502BAC utilizes a zero-cross MOSFET switching circuit, which enables it to switch on and off based on the load voltage rising and falling, respectively. Overall, the LH1502BAC is an ideal choice for applications that require reliable and long-lasting switching and control of large power loads.

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