HA4875H

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Solid State Relays (SSRs) are an essential component in various electronic systems due to their ability to switch signals and provide isolation between two electronics devices. The HA4875H is a popular choice for SSRs due to its high reliability, robust design and industry-standardized features. It is a three-terminal, single-phase, one-pole, true-zero-crossing SSR that provides excellent protection and isolation between circuits. The relay’s high switching capacity and zero ghost current make it ideal for a variety of applications including remote control, energy management, HVAC systems, lighting and medical equipment controls.

The HA4875H has an on-resistance of less than 0.4mΩ at 25℃ and its true zero-crossing circuitry eliminates the need for a surge-protective device. The relay also features an LED indicator to show the operating status of the unit, allowing for better energy management via manual or computerized control. Additionally, the relay has an adjustable pick-up voltage of 0 to 24 Vdc, making it ideal for a wide array of applications.

The HA4875H SSR is designed with a zero-cross switching mechanism, allowing it to switch on and off without drawing a heavy current across the contacts. This helps to reduce the overall power consumption in the system and eliminates the possibility of sparking or arcing due to the relay’s low resistance. The unit is also equipped with a built-in flyback diode that provides protection against voltage spikes. This helps to ensure that the relay’s contacts remain undamaged even when subjected to extreme voltage fluctuations.

The HA4875H is a highly reliable and cost effective SSR solution that is suitable for a variety of applications. It is designed to operate at temperatures ranging from -40°C to 60°C and its dust-proof enclosure helps to protect the unit from external contaminants. The relay’s robust design ensures that it will remain operational during long-term use and it is tested for compliance with many international safety standards. Combine this with its low on-resistance and high switching capacity and you have an SSR that is not only reliable but also efficient.

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