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โก Elevate your control game with silent, powerful switching!
The CG Solid State Relay SSR-40DA is a robust, single-phase relay designed for seamless DC to AC switching with a 40A current rating. Featuring a compact design with included thermal grease for enhanced heat management, it ensures silent, spark-free operation ideal for industrial automation and temperature control systems. Built with durable materials and electromagnetic compatibility, it guarantees long-lasting, reliable performance in demanding environments.















| ASIN | B08GPB7N2T |
| Best Sellers Rank | #12,036 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Solid State Relays |
| Brand | CGELE |
| Brand Name | CGELE |
| Coil Voltage | 3 Volts (DC) |
| Connector Type | Screw |
| Contact Current Rating | 40 Amps |
| Contact Material | Silver Alloy Or Copper Alloy |
| Contact Type | Normally Open |
| Current Rating | 40 Amps |
| Customer Reviews | 4.6 out of 5 stars 137 Reviews |
| Manufacturer | CGELE |
| Maximum Switching Current | 40 Amps |
| Minimum Switching Voltage | 3 Volts (DC) |
| Model | DC to AC 40A |
| Mounting Type | DIN Rail Mount |
| Number of Terminals | 3 |
| Operation Mode | Automatic |
| Specification Met | Electromagnetic Compatibility |
| UPC | 774297736439 |
| Unit Count | 1.0 Count |
M**S
Great relay!
Perfect relay for the job. Fast shipping. Thanks
R**.
Got our yard sprinklers working again!
Be sure to mount these to a heat sink or metal surface for cooling. Our old one burned out because the mounting screws rusted off and the unit overheated.
E**.
Solid and reliable.
Good SSR for a good price. Been using for a couple months now with zero issues. I'm using the 40A model for only ~6 amps, 120V, which could be why lol. But the higher amperage models aren't much more expensive anyway. Haven't noticed any heat buildup or noise. Super easy to get set up with fork connectors, and the input switching supply needs only be a couple dozen milliamps.
P**N
Make it clear the SS relays need a load in order to work
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.
C**S
10
10
K**Y
Reliable ssr with good extras
This SSR performs well under load and has been reliable in my temperature control system. It switches cleanly without noise or spark, just as expected from a solid state relay. The build feels sturdy, and the included thermal grease is a nice bonus to help with heat dissipation. I paired it with a heatsink for better performance and havenโt had any overheating issues. The the plastic cover feels a bit flimsy and might not hold up in rougher environments. Still, for most DIY or light industrial applications, this is a solid and dependable choice.
H**S
Works as it should so far.
So far works as it should for my purpose. Will see if it holds up, using it in my smoker.
A**R
Great value
Great value, easy to install.
Trustpilot
3 weeks ago
2 weeks ago