CG Solid State Relay SSR-40DA DC to AC Input 3-32VDC To Output 24-480VAC 40A Single Phase Plastic Cover…

The CG Solid State Relay SSR-60DA is a robust and versatile component designed to facilitate efficient switching between DC and AC circuits in a variety of industrial and commercial applications. Engineered for reliability and precision, this solid state relay (SSR) offers substantial benefits in terms of performance, safety, and longevity.**Design and Build Quality:**The SSR-60DA features a sturdy and compact design suitable for integration into diverse electrical systems. Enclosed in a durable plastic or metal housing, it provides protection against environmental factors and electrical interference, ensuring reliable operation even in demanding industrial environments. The relay's build quality inspires confidence, capable of enduring extended operational cycles without compromising performance.**Functionality and Versatility:**Designed for DC to AC switching, the SSR-60DA effectively converts low-voltage DC control signals (3-32VDC input) into high-voltage AC output signals (24-480VAC, 60A), making it suitable for controlling heating elements, motors, lighting systems, and other AC-powered devices. Its versatility extends to applications requiring precise and rapid switching without the mechanical wear associated with traditional electromechanical relays.**Performance and Efficiency:**The SSR-60DA excels in providing efficient and silent operation compared to mechanical relays, thanks to its solid-state design that eliminates moving parts and reduces power consumption. It offers fast response times and precise switching control, contributing to enhanced system efficiency and reduced energy costs over time. Additionally, the relay's ability to withstand high inrush currents and voltage spikes ensures stable performance under varying load conditions.**Safety and Reliability:**Equipped with optically isolated inputs and robust internal components, the SSR-60DA prioritizes user safety and system reliability. It features over-current and over-voltage protection mechanisms that safeguard connected equipment from potential damage due to electrical faults or transient conditions. This built-in protection enhances operational safety and extends the lifespan of both the relay and associated electrical components.**Conclusion:**In summary, the CG Solid State Relay SSR-60DA stands out as a dependable solution for DC to AC switching applications, offering superior performance, efficiency, and reliability compared to traditional electromechanical relays. Its robust construction, versatile functionality, and advanced safety features make it a valuable asset in industrial automation, HVAC systems, and other critical electrical control systems.**Rating:**⭐⭐⭐⭐⭐**Pros:**- Durable and compact design suitable for industrial environments- Efficient DC to AC conversion with wide input and output voltage ranges- Fast response times and precise switching control- Built-in protection features for enhanced safety and reliability- Low power consumption and silent operation**Cons:**- None significant noted during evaluation

I bought this since it was reasonably priced and shipped overnight, and I needed it for a custom project with a tight timeline. It is overrated for my circuit, which only draws up to 2 amps, but I still mounted it to a quality heatsink. I may pull it for a different project some day so the extra capacity is nice to have. Used in a cooling circuit with a 12V control voltage that cycles the SSR multiple times an hour. Has been working just fine for weeks and I expect it will continue to do so.

I live off-grid in a solar powered cabin. All of my construction is permitted and being inspected. Since I started construction, the NEC (National Electric Code) has changed somewhat. Prior to receiving my certificate of occupancy, I must have a rapid shutdown method implemented in my solar power plant to protect firefighters.My inverter can supply up to 60 surge amps to the main electrical box. Thus, I purchased this SSR 100 DA solid state relay. It was put in series with the output of the inverter and I have an outdoor waterproof emergency shutdown button conspicuously placed so that firefighters can easily find it. When it is depressed, it de-energizes this SSR, effectively killing all power to the cabin immediately.I've tested the SSR under light and heavy load. It has performed well.

I purchased a couple of these to use as a replacement for the original relay controlling the compressor in a window AC unit which had developed an intermittent "contacts closed when coil deenergized" condition. At the cost of these solid state relays, it doesn't make sense to retain the "old tech" of an electro-mechanical relay when you can gain all of the benefits of a solid state device. Longevity is uncertain at this point, but I will be surprised if I ever have to replace it again, since I selected a new relay with double the load current rating due to the inductive load of the compressor.

I bench tested this SSR with an LED lamp load at 120VAC. I drove it from 3-15 VDC and observed the current draw from 8 to 11mA. In my application, I would prefer less current draw to having an LED indicator. But you can't beat the price and fast delivery via Amazon. This will be used to replace a thermal lamp timing switch in an ancient garage door opener, where I'm going for minimum parasitic drain on a control circuit. Expect a 10-11mA load if you use this relay in a 12VDC circuit.

I ordered this relay for a project. All wired up. Red light came on. Tested continuity with Fluke ohm meter. No continuity. Sent back. Replaced quickly. (Great service). Same result. No continuity. Happened that our adult son was with me, and advised me to put a load across the NO contacts. Worked perfectly. So I returned the first relay for no good reason. But in the product description I cannot find anything about a minimum load in order for the relay to work. Works very well in my project. Service on return was excellent. Would be much better to have an explanation about needing at least a minimum load.

I used it for a couple of months in a homemeade spot welder. Set the machine aside for a couple of months, went to dust if off, discovered it doesnt trigger. Traced the problem down to this guy. Now I'm two monthw past the return window.Weaksauce. I hate feeling taken advantage of as a consumer.