G3H-203SLN DC24

Series:	G3H
Packaging:	Bulk
Part Status:	Active
Mounting Type:	Socketable
Circuit:	SPST-NO (1 Form A)
Output Type:	AC
Voltage - Input:	19.2 ~ 28.8VDC
Voltage - Load:	75V ~ 264V
Load Current:	3A
Termination Style:	Plug In
Package / Case:	--
Supplier Device Package:	--

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Solid State Relays

Solid State Relays (SSRs) are types of relays that use semiconductor switching devices, rather than mechanical relay contacts. This type of relay has become an increasingly popular choice in applications where the switch needs to control low-level signal circuits, as well as higher power circuits. To understand the application field and working principle of G3H-203SLN DC24, it’s important to have a better understanding of what exactly a Solid State Relay is and how it functions.

What is a Solid State Relay?

Solid State Relays are electronic switching devices that are able to switch both AC and DC currents and voltages. They consist of two parts: a power transistor and an opto-isolator (which is an optically coupled light-emitting diode (LED) and photosensitive detector).The SSR relies on the opto-isolator to prevent high voltages from occurring across the device. When the power transistor is switched on, the LED is illuminated and the detector causes the power transistor to turn off. As the higher voltage is blocked, there is no physical contact between the circuits, as there would be in a mechanical relay. Moreover, it is also capable of being programmed and controlled by a microcontroller or a computer.

G3H-203SLN DC24 Application Fields and Working Principle

The G3H-203SLN DC24 is a Solid State Relay designed for use in a variety of applications, such as automation control, lighting control, temperature control, process control, telecommunications and motor control. This type of relays is a must for industrial applications that involve AC and DC load switching.The G3H-203SLN DC24 is a DC-operated SSR rated at 24V DC. It is designed to switch currents up to 15A and voltages up to 250V AC. It has a maximum operating frequency of 600Hz and an insulation resistance of 500MΩ at 500V DC. The relay is also equipped with LED indicator light that indicates the status of the circuit. The G3H-203SLN DC24 offers a high level of protection due to its sealed construction.The working principles for the G3H-203SLN DC24 are relatively simple. When a certain voltage (in accordance with the rated voltage of the relay) is applied to the control input, it causes the opto-isolator to turn on and the power transistor of the SSR to switch on. This, in turn, causes the load circuit to be completed and the appliance to turn on. The opposite happens when the voltage is lowered below the rated voltage, causing the opto-isolator to turn off and the power transistor of the SSR to switch off, breaking the load circuit and turning off the appliance.

Conclusion

Solid State Relays provide a reliable, cost-effective and user-friendly solution for a variety of industrial applications. The G3H-203SLN DC24 is just one example of how an SSR can be used. This particular relay offers a high level of protection due to its sealed construction and is capable of switching both AC and DC currents and voltages. Moreover, it is also able to be programmed and controlled by a microcontroller or a computer. With its simple working principle, the G3H-203SLN DC24 is an ideal choice for any application that needs to switch high voltages and/or currents.

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