relay

Hello Everyone, I am not an electronics guy but building a simple project to detect water arrival in utility supply line, switch on the pump if tank isn't full, stop when either tank gets filled or water supply is stopped. Please ask any clarifying questions for details I have missed. I need to...

I have a surge tester setup that uses a high-voltage power supply (up to 1000 V) to charge a non-polarized capacitor bank using SW1 to energize Relay 1 in Image 1. The bank discharges into a waveshape network (inductors + resistors) through a high-power relay, triggered by a push-button. Each...

Hello everybody, So I can't seem to figure this one out. I have a card reader (Nayax Onyx) with a constant 9v on pulse cable. I have a 12v relay switch. https://www.otronic.nl/nl/relais-module-12v-2-kanaals.html Connected 9v pulse cable to IN, 12vdc and -12vdc to power the relay coil...

Is there a way to verify if a relay is genuine or fake? I have a 30A Hella relay that says "Made in Germany" but I have some concerns about whether it might be a counterfeit.

Does anyone know where I can buy these? or Is there anyone out there who can make these for me? I would like 4 of them made. This is an old elevator time delay relay looks like home made because no markings or brand. The elevator was made made by Elevator Industries of Sacramento, CA. This...

Hello everyone! Long-time viewer, first-time poster here. I work for a pretty large school district that has been around for quite some time. The systems in place here are well out of date and with that comes lots of technical issues. As A/V Admin, it's my job to understand and resolve them...

Hi all, hi Ya’akov. My previous (relay mute) project is running nicely for 4 months now. Time for a new BMW project. This time, I want to add extra LED lights in the trunk. I thought there could be an easier way, instead of tapping into the trunk lighting switch and pulling wires into the...

So our project is based upon using a solar panel as the main source, but in case it fails, we need the circuit to automatically switch to the government supply which we'll be converting into 12V DC. Can this be achieved directly and simply by a relay circuit like the one in the image? Or we need...

Need help with a 12v Automotive application project. 2 12v electric motors 2 12v Relays 1 electric latch/lock assembly 2 push button switches I built a custom storage compartment with electric motor to automatically open and close and I added an electric latch/lock assembly that locks when...

I am trying to make a power wheel car remote controlled. My setup is: I am using a 4 channel relay module to control the car's motor in forward reverse motion and the relay is getting the signal from a RC receiver. I have a 12V lead battery. The relay board and the receiver board needs 5v power...

In my app i can see thst my button is toggling when im pressing that should stop the water pump but its not stopping it (I am using arduino uno just for the 5v to power the railway that is connected the vin pin and the vcc for relay)

Hello Everyone, I'm currently working on a project where I aim to remotely control a 3-phase 22kW water pump motor using an Arduino microcontroller. To achieve this, I'm considering using relays as ON/OFF switches between the Arduino and a contactor that will ultimately control the motor...

i want to create DC Motor Reverse Polarity Cyclic Timer Switch, here i post some pictures that uses 555 timer ic. can anyone make working diagram from pictures? thank you.

Hi all, this is my first post here: Mute button: My BMW head unit has a mute/volume button. The encoder, when pushed-in mutes the head unit. Today, I accessed the encoder and soldered 2 wires on the 2 pins which join when the encoder is pushed-in. See photos/video. Triggering: I have a...

I know its a bit janky but Ive just needed to make this door opener device remote control and for some reason, I cannot get this receiver to power anything even when both channels are on. Can someone help me?

Hi every one. I'm searching for the schematic of the relay РВЭ3А-Т ЯЛ4.544.001-47. I found it on google and I don't understand what it is (A, B, 5, 6, 7 lead). Can you explain how does it work. Thank you very much.

Hello, recently my 1994 range's oven control board died and rather than replace the entire range, I figure I would find a way to power the oven's bake element by designing/building a (simple?) circuit. I have verified that the "bake" element in the oven works (drawing 13 amps at 250v AC) and the...

I have bought this Delay Relay module off of amazon. I am using it to make a circuit that will act as a latching relay with a delay for a 12V power source. The circuit should work as follows: There is a switch to activate the relay. When activated, the relay will remain on until the 12V power...

I have a mechanical system I'm building and I want to use snap switches to control the order of operations. The order will be something like this. 1. Run 1 revolution of the electric motor, then stop motor. 2. Activate solenoid. 3. Activate second electric motor for 1 revolution. 4. Begin...

I need help with an idea i had. I’m trying to use RF to control a 24v relay. The receiver would need to turn on and off a normally open 24v rated relay. The transmitter would need to get its signal to turn on or off the receiver from a normally open contact wired to the receiver. Basically when...