AC SSR Relay AC SSR of Horizontal Type Double LED Indicator

Description of  AC Single Phase SSR Solid State Relay

The solid state relay comprises a transmitter, Tx, and receiver, Rx. These are physically positioned within the solid state relay. The incoming control signal energises the LED within the optocoupler and this illuminates the output switching device which is photosensitive and this causes it be switch over from its normally non-energise state. Typically it switches the output device on, allowing current to pass through the SSR output.

The transmitter and receiver are typically located within the same component, simplifying the construction of the solid state relays.

It can be seen from the diagram that there is no electrical connection between the input and output circuits. This separation, often called galvanic separation is key to keeping the input and output circuits isolated from one another. The galvanic isolation between the LED and photo-device is typically in the range of several thousand volts due to the separation between the optical transmitter and receiver or detector device separation, and an optically transparent insulating barrier which is placed between them.

When looking at the SSR specifications, it is worth noting that isolation is specified in terms of the voltage breakdown, i.e. the voltage that causes breakdown between the input and output. It is not the same as input to output resistance. Dependent upon the device this can be anywhere between 1000 to 1 million MΩ - as it is so high it is often considered to be an “infinite” resistance.

Although the basic concept diagram of the solid state relay only shows an LED that illuminates an light sensitive semiconductor switch like a thyristor or SCR, a triac, transistor or MOSFET, there are also other components that are required within the SSR.

Specification of  AC Single Phase SSR Solid State Relay

AC SSR Relay AC SSR of Horizontal Type Double LED Indicator

AC SSR of Horizontal Type Double LED Indicator

Our Company

Founded in 1992, Wuxi Gold Control Technology Co., Ltd., a private high tech company, is specialized in the research and production of Solid State Relays, Electronic Semiconductors, DC Motor Drivers and AC Voltage Regulation Devices.

For the past 10 consecutive years, our company has been qualified as "Jiangsu's private high tech business". We have also been given the honor as "Wuxi's 10 Best Private Science & Technology Enterprises" for years.

Our products, the electronic modules with the brand of Gold, have been listed among "Wuxi's Renowned Products".Our company has 5 patents on Solid State Relays. Our products are widely used in various industrial automation control areas like chemical fiber machinery, temperature control of electric furnace, rubber & plastic machinery, fountain control and digital-controlled machinery, and are sold to Europe, America, Korea and Turkey.

Our Factory

Our factory can produce about 50,000 pieces each month. We can give you good quality and reasonable prices. We have 20 professional research people who have all been graduated from famous universities and colleges. When producing, we have strict tests: self-test, inter-test and special-test.

Our Certificate

Our products, the electronic modules with the brand of Gold, have been listed among "Wuxi's Renowned Products".Our company has 5 patents on Solid State Relays. Our products are widely used in various industrial automation control areas like chemical fiber machinery, temperature control of electric furnace, rubber & plastic machinery, fountain control and digital-controlled machinery, and are sold to Europe, America, Korea and Turkey.

Our company passed the Certification of ISO9001:2000 in 2000. Our main products have been given CE Certificate of European Union, UL,CUL and RoHS Certificates.