G3VM-61PR1(TR05) Relays

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Solid State Relays (SSRs) are self-switching electrical switches which are used instead of electromechanical relays to switch low-voltage, low-current signals. They are generally used for controlling circuits, switching lamps, and controlling the speed of motors. For certain applications, such as sensitive electronic circuits, the use of solid-state relays is often necessary due to its lack of "bounce" or "contact chattering" and its immunity to electromagnetic interference (EMI). One such type of SSR is the G3VM-61PR1(TR05), a very versatile and reliable SSR.

G3VM-61PR1(TR05) Application Field and Working Principle

The G3VM-61PR1(TR05) is designed primarily for industrial applications such as alarms, lighting control, motors and machinery, and process control. It is also suitable for consumer and other applications.

The G3VM-61PR1(TR05) is a zero-cross solid state relay. It has a maximum input voltage of 5 VDC, and a maximum continuous current load of 6 A AC at a 25°C ambient temperature. It has an operating frequency range of 20Hz to 120 Hz. The built-in snubber circuitry protects the relay from voltage and current spikes, ensuring longer lasting performance and reliability.

The G3VM-61PR1(TR05) is an optically isolated relay and its output is driven by a Triac gate. It has a response time of 40-60 μs, and a dielectric strength of 2500 Vrms for 2 minutes. It has a high insulation voltage of 5 KV between the control and output terminals. The device has a single pole double throw (SPDT) form, with a normally open (NO) and normally closed (NC) contacts.

The working principle of the G3VM-61PR1(TR05) is based on the optoelectronic principle. It consists of an LED (Light Emitting Diode) optically coupled to a photo MOSFET (metal-oxide-semiconductor field-effect transistor). The input is applied to the LED which, when energized, emits light into the MOSFET. This light activates the MOSFET, allowing it to become conductive. The MOSFET then drives the output side which can be used to switch an electrical load.

The most important feature of the G3VM-61PR1(TR05) is the Zero-cross switching technique, which is utilized to minimize electrical surges on the output side when switching the load. This technique ensures that the relay is fired when the output voltage is at or near zero level, thus resulting in minimum voltage spikes. This feature provides the G3VM-61PR1(TR05) with superior reliability and efficiency.

The G3VM-61PR1(TR05) is equipped with an integrated upper and lower MOSFETs which, in addition to the LED, results in a two-in-one package solution. This device is capable of handling up to 6 A AC load at 25°C, and has excellent grounding specifications. It is also UL listed and CE certified.

In summary, the G3VM-61PR1(TR05) Solid State Relay is a reliable and versatile optically isolated device. It is ideal for controlling alarms, motors, lighting, and process control in a variety of industrial, commercial, and consumer applications. It is low cost and has a long operational life, due to its Zero-cross switching technique and two-in-one package solution.

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