Description: A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state relays have several advantages over mechanical relays. One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays. Also, because there’s no moving contacts, solid state relays can be switched much faster and for much longer periods without wearing out.
This particular SSR can switch current loads of up to 40A with a 3-32V DC input and a zero cross trigger control method. Each one of these relays is equipped with four screw terminals (for use with ring or fork connectors) and a plastic cover that slides over the top of the relay to protect the terminals.
Based on 4 ratings:
0 of 1 found this helpful:
Did not cause unnecessary troubles.
I have it driving two stove eyes in a homemade oven. It handles it with no problems and no heat even without a heatsink
This SSR is suitable to switch with out click sound and high power consumption product like heater, Thank you
I’ve used a few of these with PID controllers to switch heating elements (in a sous vide cooker, and an espresso machine, both 120 V AC) – it handles lots of AC current, silently; even with high loads, the SSR doesn’t get very warm. My sous vide cooker is about 1200W, and when the full load is going through the SSR as it initially brings things up to temp, it still isn’t hot to the touch. It’s easy to put a radiator on the back - there’s a nice metal plate, just add a couple mounting screws and some thermal paste - but I haven’t needed to do so.
The input is easy to switch with an Arduino or other 5V microcontroller output, to control e.g. heaters, pumps, lights.
The indicator LED is useful to check that the SSR is getting the control signal. The screw terminals work nicely with either bare wire or spade connecters.
The one I have in my espresso machine is inside the machine’s case, and routinely sees 220 deg F; the heat so far has not affected functionality at all. This is a robust device, at a good price.