Hello! I'm currently tinkering with my model railway and would like to upgrade it a bit. I taught myself most of the skills while supplementing my schooling, so I'm still a little unsure… I'll calculate the values once I know the specific values of the components. I divided the plan into three parts: switches, stop…
Hello, I found this push-button relay in a house and plan to replace it with a Shelly because it is causing problems (it no longer switches properly, sometimes even short circuits). Can anyone tell me approximately how old this relay is?
What's the easiest way to equip the button on the intercom that activates the electric strike to open the front door with a radio relay? This allows me to open the door from the outside by pressing the radio button. What voltage does my relay require? How do I connect the relay to the intercom?
Hello everyone, Does anyone know of an installation contactor that I can operate with 10VDC and can operate 230V at 16A max. on the main contacts? I can only find pure AC installation contactors, and if I do find an AC/DC contactor then it needs at least 12V to operate the coil. Does anyone have…
Hello, I'm currently building an automatic chicken coop and I wanted to ask you if it would be possible to do it the way I imagined. 😀 I have a 12V timer that triggers the first timer and makes the motor run in one direction for a certain amount of time. As soon as the…
Hello, I got a 12V relay and connected it. It clicks but the voltage is not switched. Please help Lg
Hello, The goal is to switch a clockwork DC load with consumption data of 1.5V and 0.8mA. This clockwork is powered by a single AA battery and is used in many simple wall clocks. The component I want to use to switch on the clockwork can supply 15mV switching voltage. At 0V, the clockwork should…
Hello, I'm looking for a device (similar to a code lock control unit for doors that are attached to the wall, for example). This control unit must be able to manage multiple codes, either in standalone operation or with a gateway or similar. The device then uses these codes to control different devices. For example,…
Hello, Why does a solid-state relay (in this case, the RSDA-660-30-3D0) with no connected load generate a small current when not switched, which immediately drops when loaded? With a connected load, the current is undetectable. Thanks in advance for your answers. best regards Kilian
Can someone decipher this circuit diagram for an Omron 12V DC printed circuit relay? I'm particularly interested in the left half. What does S or R mean?
Hello, I would like to automatically switch the sockets in my self-converted camper to shore power when I connect shore power to the CE socket and, if no shore power is connected, feed the sockets via the inverter. Since mains priority circuits are quite expensive, I thought I could implement this with a 230V relay…
I'm currently working on an exam question and I don't quite understand why this V symbol is listed as the correct answer, even though the textbook shows this different image everywhere. Can someone give me a solution? The exact wording of the task is: Which circuit symbol according to DIN must be used in the…