cmjdev asked: What relays are you using for your arduino project? I'm in need of some smaller footprint guys that have a const current of 30A at 14V that can be safely switched at 10Hz max.
I’m using an Omron product - A G5T-1A. It’s only rated to 5A. I’m a little worried about the 10 HZ duty cycle. What kind of load are you switching? AC? DC? If you’re switching DC, there are also MOSFETS that can very easily switch 30 amps, or AC with various solid state relays. The advantage of the SSR (Solid State Relay) and MOSFET control is a matter of component life and noise, both audible and electrical. 30 amps switching at 10Hz is going to vaporize the relay contacts in no time. For example, a T9AS1D22-24 relay, rated at 30 amps, is predicted to fail after 1000 cycles when switching a 1/4 HP motor. As for where to find them? Digikey has an almost uselessly huge selection of EVERYTHING, and used solid state relays can be found surplus for next to nothing. Good luck with your project!2 weeks ago