AQW214HLA

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AQW214HLA is a solid state relay specifically designed for the automation of industrial systems. It combines cost and space efficient electrically operated switching with the convenience and reliability of a traditional mechanical relay. This product is widely used in a range of applications including lighting, computers, and automation systems, such as industrial robots, temperature regulation, machine tool control, and process automation control.

Working Principle

Solid State Relays (SSRs) are non-mechanical electronic switching devices that use a semiconductor module to directly switch AC loads. An SSR contains no moving parts and this makes them advantageous in certain situations, particularly where high speeds are needed or stringent environmental restrictions are in place.

At its core a Solid State Relay is an analogue switch that can be used for switching of various logic signals. An SSR contains a light-activated, or opto-coupled, switching element. In most cases, this is an LED that’s controlled by a transistor or a FET. The LED is used to switch the actuator connected to the desired device. The aforementioned controlled LED is activated by a switch control signal, producing a light signal. This is then received and converted by the opto-coupler on the other side of the circuit, and the necessary measures are taken based upon the input.

The AQW214HLA solid state relay incorporates a zero voltage turn-off design which eliminates the need for an additional reverse polarity protection device. Specialized input and output noise suppression circuits provide extra reliability, while the low operating and control temperature make it ideal for demanding installations, such as lighting, air conditioning, and process control systems.

Application Fields

Solid State Relays are typically used to switch high voltage and/or high current loads, with the added benefit of reduced contact arcing. They are more efficient than electromechanical relays as they have fewer moving parts and they are capable of switching signals faster.

The AQW214HLA Solid State Relay is a general purpose unit that can be used in a variety of applications. It can be used to switch loads up to 16A at 250 VAC, or 32A at 125 VAC. It is compatible with a variety of power supplies and is designed to be used in commercial applications such as industrial automation, temperature control, machine tool control and security systems. The AQW214HLA also has additional features such as over current, over voltage and reverse polarity protection.

Solid State Relays are increasingly being used in the industrial sector to switch AC or DC current. They have no moving parts and therefore are ideal for applications that require high switching speed, vibration or need to operate in harsh environmental conditions. Solid State Relays are also widely used in the consumer electronics industry, for example in digital TV’s, for their high switching speed and vibration resistance.

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