Best SPST Solid State Relays of 2026

The HiLetgo SSR-25DA Relay is a reliable solid state relay designed for efficient control of electrical devices. With an input voltage range of 3-32V DC, it allows you to easily connect various control systems. Its output voltage can handle 24-380V AC, making it suitable for a wide range of applications. The included alloy heat sink helps to dissipate heat effectively, ensuring reliable operation and longevity. You can benefit from the convenience of DC to AC control, which simplifies the process of managing electrical loads in your projects.

The Inkbird Solid State Relay 40DA DC SSR is a black heat sink designed for temperature control. It has a load voltage of 24-380VAC, load current of 40A and input voltage of DC 3-32V. Its heat sink mounting thread diameter is approximately 0.5cm and its total size is around 8 x 4.9 x 4.9cm. This product falls under the category of Solid State Relays.

The CG SSR-25DA is a solid state relay that offers reliable performance and convenience. With a compact size of 58 x 45 x 32mm, it is easy to install in various applications. The relay includes 2 mini bags of thermal grease for faster temperature dissipation. This feature ensures that the relay operates at an optimal temperature, improving its overall performance and longevity. The SSR-25DA is designed with high switching speed, anti-corrosion, and moisture-proof properties, making it ideal for automatic process control applications. It is a must-have component for temperature controllers and other machinery control systems. With its solid state design, this relay eliminates sparks and noise, providing a quiet and efficient operation. The CG SSR-25DA is a reliable and versatile relay that meets the demands of various industrial applications.

The BlueStars SSR Relay is an efficient electronic switching device that allows you to control electrical loads swiftly and without mechanical wear. Its rapid switching capability enhances your automation tasks, making processes like temperature control and CNC machinery operation smoother. With a robust optocoupler and heat-dissipating design, it ensures reliable performance even in harsh environments. Plus, its easy installation means you can integrate it into your setup with minimal hassle, saving you time while ensuring safety and longevity.

The Kyoto Electric DC-to-DC Solid State Relay is designed to operate with control voltage ranging from 3-32VDC. This relay features a single-pole, single-throw (SPST) contact form and measures 1.4"L x 0.3"W x 0.9"H. The relay's solder lead terminal type makes it easy to install and use. This product is a great choice for those in need of a reliable solid state relay for their project.

The CG SSR-40DA is a solid state relay that offers a reliable and efficient solution for automatic process control applications. With a current and frequency of 40A and 50/60Hz respectively, this solid state relay is designed to provide high switching speed, anti-corrosion, moisture-proof, anti-vibration, and long life characteristics. It comes with two mini bags of thermal grease to facilitate faster temperature dissipation. The CG SSR-40DA is an ideal component for temperature controllers and other machinery control systems, offering no spark, no noise operation. Its compact size of 58 x 45 x 32mm and lightweight design of 116g make it easy to install. With its high reliability and electromagnetic compatibility, this solid state relay is a must-have for any control system.

The Idec Relay 50A Panel, also known as the Idec RSSDN-50A Solid State Relay, is a reliable solution for your electrical switching needs. With a single-pole, normally open contact configuration, it can handle a load current of 50A and operate at a maximum voltage of 660VAC. Mounted on a panel and featuring screw terminals, this relay offers easy installation and maintenance. The solid-state design ensures durability and quiet operation, making it ideal for various industrial applications.