Hi All ,
I consider myself good at computer programming but i am clueless with electronics.A few times i did install audio systems in cars , installed starters so i only know basics in that department, basically i need to power a hefty size waterpump , switch on and off.
Want i want to know is what do i need to achieve this and if you guys know of a good tutorial i can watch.
Thanks
The easiest way to do it is with a [u]solid state relay[/u].
There are 3 ratings to look for - Make sure the "contacts" are rated for 240VAC or more and the current rating (Amps) should be equal to or greater than the amperage rating on the pump. Or, get one with a current rating equal or greater than the circuit breaker amperage for the pump's circuit.
The 3rd spec to look for is the control voltage. Make sure it works with a 5VDC control voltage.
High-power solid state relays usually connect with screw terminals, which makes them easy to hook-up.
Alternatively, a regular electro-mechanical relay can be used but they generally cannot be directly driven by the Arduino's 5V, low-current, output. You usually need a driver circuit and a higher-voltage source (typically 12V). You can get a relay board with a driver circuit built-in, but it's not quite as easy as using a solid state relay.
Thanks a lot for your help
I have watched this tutorial , i think it will work for me like this
it is pointless to offer suggestions without knowing what you are actually trying to do.
the proper procedure is that you link a data sheet to the motor/pump and we look over the specs and then offer suggestions.
since you are using a tiny hobby pump the aforementioned SSR would work.
I am installing a couple 240v 3-phase, 7.5 hp pumps. and I can offer that the aforementioned SSR is not going to work.
actually the SSR would work on the hoist needed to lift these pumps out of the pit.....