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Solid State Relay
SSR switches use semiconductor component acts as a switch for the relay, connection by screw terminals,high strength, impact resistance and strong vibration resistance, with low requirement for input current.
Integrated radiator
This product is equipped with a heat sink, eliminating the hassle for customers to choose a suitable heat sink and preventing improper selection from affecting product use, thereby improving the adaptability of solid-state relays.
DIN rail mounting
Quick Installation: Excellent rail solid state relays can be quickly plugged in and installed without the need for time-consuming steps such as cable connection and screw fastening. This reduces repair and replacement time, increases productivity and reduces downtime.
Daniel Patrick
2025-08-19 14:57:35
I recently tested this ReleyWell solid-state relay and was satisfied by both its design and performance. This relay, rated for 40A with a 3-32VDC control input and a 24-480VAC output, integrates several features that simplify its use in control systems. It includes a DIN rail mount, and an integral heatsink, eliminating the need for additional thermo-mechanical considerations.For my evaluation, I incorporated the relay into a control system I am developing. The control circuit was driven by a properly constructed open-collector output from a GPIO module, while the load side was connected to a DIN rail-mounted standard US 120VAC outlet, powering a 150W outdoor LED light. Since the LED driver presented a complex load, I adhered to the manufacturer’s recommendation and applied a 10x derating, reducing the max current threshold from 40A to 4A for safe operation.Testing confirmed the relay's ability to handle this configuration reliably. The measured AC current was approximately 1.25A, which was well within the adjusted safety limit. To monitor thermal performance, I attached a temperature probe to the relay's heatsink. After five minutes of continuous operation, the temperature rose only 3°F above room temperature, indicating effective thermal dissipation.I calculated the power consumption at approximately 150W (1.25A x 120V), which remained safely below the adjusted maximum of 480W for this load type. The relay performed flawlessly throughout testing.What stood out the most was the ease of integration. The DIN rail mount made installation mechanically simple, while the built-in heatsink removed any guesswork around thermal considerations. Based on its performance, I am happy to give this solid-state relay a 5-star rating and recommend it, provided the user can apply the appropriate engineering.
Christopher Galfo
2025-08-05 19:33:07
If you need a quiet, sensitive, and reliable way to turn on and off a high-power AC circuit then this Solid-State Relay is for you. The integrated heat-sink makes it convenient to install and, depending on your application, you can either use or ignore the built-in DIN rail mounting bracket. I found the electrical and thermal characteristics of this SSR to be quite impressive after I did some careful tests. I’m using this relay to control a 240 VAC 10 amp circuit and it barely gets warm to the touch after a few hours in the “ON Stateâ€. Just out of curiosity, I also measured its “OFF State†leakage current, which turned out to be an amazingly low 7 microamps! Many inexpensive Solid-State Relays have leakage currents a hundred times higher than that, although most applications can tolerate moderate leakage currents (in the low milliamp range). In conclusion, this is a high quality SSR and I think you’ll like its performance.
Eric Baker
2025-07-30 14:08:28
This relay ise awesome to replace a contactor for a high amp load. It is absolutely quiet. Combine this this a thermistor, a pulse width output, you can modulate a heat source to control precise temperature.
Jack Of All Trades
2025-07-23 11:41:47
This is a pretty nice little relay. It has a DIN rail mount on the bottom and the circuitry is separated by a gigantic tree-shaped heat sink. I tested with a 110 volt indicator light and 12 volt switching power - it worked flawlessly. Of course this is a 40 amp relay, so you will probably use it for a much larger load like a motor or AC unit.Pros: Nice design and fast switching. The load range is 24-480 VAC at 40amps and the switching input is 3-32 volts DC. When I get some time, I will see if this unit will respond to transistor level power to see if it could be connected to a microcontroller. The terminal studs are robust and have lock washer on them to keep them tight. There are flip up guards over the terminals to keep them insulated.Cons: From top to bottom I feel like the construction is a little light for the size of wire you might attach to this unit. The DIN rail connector is plastic and could see this breaking if it were bumped hard enough.
Mr. Steve
2025-04-03 16:00:40
I purchased this Solid-State Relay, DC to AC (Input 3-32VDC Output 24-480VAC) to replace the transport motor relay in my Quantum power wheelchair, and I couldn’t be happier!The difference is night and day—gone is the annoying “click†sound from the old mechanical relay every time the transport motors engage. Now, it operates silently and smoothly, making for a much more pleasant experience.The built-in heatsink is a fantastic feature, keeping the relay cool even with continuous use. While it’s designed for DIN rail mounting, the inclusion of two mounting holes makes it incredibly versatile. In my case, I was able to secure it independently with the provided mounting holes, as shown in my photo.If you’re looking for a reliable and efficient upgrade for similar applications, and have basic mechanical & electrical skills, this relay is a solid choice. It’s well-made, performs flawlessly, and was easy to install. Highly recommended!
t norris
2025-03-07 15:47:49
I am using this to power the heating elements in a DIY powder coat oven. I like the fact that it comes already assembled with the heat sink and a DIN rail mount. It is rated for 3-32 VDC control, I have tested it with a 5V signal and it is working flawlessly. A solid buy
Catherine
2025-03-06 14:41:32
This relay works well controlled from an ESP32 running a 120volt AC Fan.
Michael Erchul
2025-02-06 14:36:09
I built a heater for my van and have a temperature control to turn it on and off. This is the switch I use to make things easier on the toggle switch. It's a lot of amps rushing through it and I was worried it would become a weak point. I dont have to worry about it being too cold because its not mechanical.I love it!
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