AQF3A2-ZT3/28VDC

Series:	AQ-F
Packaging:	Bulk
Part Status:	Obsolete
Mounting Type:	Socketable
Circuit:	SPST-NO (1 Form A)
Output Type:	AC, Zero Cross
Voltage - Input:	3 ~ 28VDC
Voltage - Load:	75V ~ 250V
Load Current:	3A
Termination Style:	Plug In
Package / Case:	--
Supplier Device Package:	--

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Solid State Relays: AQF3A2-ZT3/28VDC Application Field and Working PrincipleSolid State Relays (SSRs) are a type of specialized electronic relay devices which use a semiconductor-controlled switch instead of a mechanical component in the switching function. These devices offer a number of advantages over traditional electromechanical relays, including improved longevity and reliability, higher switching speed and accuracy, reduced line noise, and increased load capability. Additionally, the use of solid-state relays can reduce the size and cost of a design.The AQF3A2-ZT3/28VDC is a type of SSR manufactured by Amphenol Industrial Automation, and is designed for high-power industrial and commercial applications. This device has a maximum current rating of 60A at 28VDC, and a maximum voltage rating of 1000 VAC (50/60 Hz). It also features an integrated optical coupler, which provides additional protection against electrical noise and transient voltage surges.The working principle of the AQF3A2-ZT3/28VDC is based on the emitter control technique. This technique uses a PNP transistor as the control element, which is operated by an optically isolated signal. When the optically isolated signal is applied to the control unit, it activates the transistor, which in turn switches the main circuit on or off. The AQF3A2-ZT3/28VDC features a reverse voltage protection diode to protect against any back EMF generated when the SSR is switched off. Additionally, the device has a built-in zero cross feature, allowing it to switch off quickly and accurately, without causing any disturbances in the load circuit.The AQF3A2-ZT3/28VDC SSR is designed primarily for controlling contactor loads and fans, and can also be used for controlling insulated loads up to 250V AC. It is also suitable for switching power supplies and motors, and can be used in industrial and commercial applications. The device is available with a choice of input voltage options, including DC control, three-phase AC control, and a range of AC/DC combinations. Additionally, the device can be used as part of a series configuration, allowing for even greater system flexibility.Overall, the AQF3A2-ZT3/28VDC is a versatile and reliable SSR which offers high power ratings and flexibility. Its design includes several features, such as an integrated optical coupler, reverse voltage protection, and a zero cross feature, which make it an ideal choice for a wide range of high-power switching applications. The device is both cost effective and reliable, making it an excellent choice for industrial and commercial applications.

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