ContentHub
MM-193582 Praxistipp_Relais_&_Optokoppler_DE_V2.mp4
14 views
View transcript
Dear control cabinet manufacturers, welcome to our Helpful Tip on the 788 Series relays. Today I would like to show you how to very easily and in a targeted manner install this relay series in your control cabinets, making it easy to use in actual practice. The idea behind this relay series is to enable different elementary relays or solid-state relays with a socket to be used and to allow different types of voltages to be displayed relatively easily with highlighted signaling. To more clearly illustrate this to you let me briefly explain some of the other different ideas currently on the market and how we have dealt this topic up to now. So, let's take a look inside the control cabinet: We have installed different types of the 788 Series with different kinds of relays in the control cabinet. And the first thing you notice: We also have different colors of relays. This enables us to distinguish different types of relays or relay manufacturers based on their color. If we then take this a step further and wish to use different relays specifically for different power supplies we also have to be aware of the inventory and storage availability for the particular relays. As we have stated that we do not wish to restrict customers to using one particular type of relay to simplify signaling, we have now removed signaling and use color coding here to indicate which supply voltage is applied. Think of it like this: If everything is safe, it is transparent; if it is not that safe, or when you use a higher supply voltage, up to 230 VAC, this is indicated by red signaling. If you then wish to use different relays the question will always arise: How can this ultimately be properly indicated in the control cabinet, or how can this be well marked in the control cabinet? If you look at this sample strip here you see that we have a continuous marking strip at the top. This is also very specific to WAGO that we can use simple and actually continuous labeling to indicate what type of relay is being used and what position this relay has in the control cabinet. In addition, this series of relays has a 15-mm-wide socket that can be connected up to a maximum conductor cross-section of 2.5 mm². This means that you can apply up to 16 A to this relay socket in terms of the relay. And with 16 A at 230 VAC it's fairly obvious that the power handled by such a relay is extremely high. You can roughly switch 3.5 kilowatts through the relay. And this brings us directly to the applications for such a relay. Using these types of relays in buildings, for example in industry, enables extremely high power to be switched As a result, you can run your controller, which is supplied with 24 VDC and which activates such relays, up to 230 VAC, and at the end perhaps you have an air-conditioning system, a small motor or a heater that you wish to control, enabling you to achieve very high power. Yes, well what else can you say about this relay? Ultimately, you can use a jumper connect the supply voltage through from one relay to the next and simply wire the entire control cabinet in this manner with regard to the power supply lines, and you can also implement different levels in this way. But what is especially significant with these 788 Series relays is really the signaling and the different type of marking. Well, that's about it for me for today. I hope the information I've given you will help you to easily use this relay in actual practice and that I've shown which applications are best suited for the relay, or for which applications it can be mainly used so that you can implement wiring more easily and more quickly in your everyday work.