
Introduction
Looking for a dependable, high-performance solid state relay (SSR) for your temperature control system? The EARU Solid State Relay Series – including models SSR-25DA, SSR-40DA, SSR-40AA, SSR-40DD, and variants rated for 10A to 100A – delivers precise, silent, and long-lasting switching ideal for PID temperature controllers, industrial automation, HVAC systems, and DIY electronics projects.
Key Features
- Wide Current Range: Available in 10A, 25A, 40A, 60A, 80A, and 100A options to match diverse load requirements.
- Multiple Control Types: Supports DC input (DD), AC input (AA), and hybrid (DA) configurations for flexible integration.
- Silent Operation: No moving parts means zero noise, no arcing, and extended lifespan compared to mechanical relays.
- Fast Switching: Ideal for PID controllers requiring rapid, precise on/off cycling to maintain stable temperatures.
- Built-in Protection: Features include overvoltage suppression and robust isolation for safe operation in harsh environments.
- Compact & Easy to Mount: Standard SSR footprint allows for simple panel or DIN-rail installation.





Why Choose EARU SSRs?
Unlike traditional electromechanical relays that wear out over time, EARU’s solid state design ensures consistent performance millions of cycles without degradation. Whether you’re controlling a heating element, motor, or industrial heater, these SSRs provide clean, reliable switching with minimal power loss and no maintenance.
At just $4.07, this is an exceptional value for a professional-grade component. Don’t pay more for less – get industrial reliability at a hobbyist-friendly price.
Perfect For
- PID temperature controllers (e.g., for brewing, reflow ovens, incubators)
- 3D printer heated beds
- Greenhouse climate control
- Industrial process automation
- Homebrew and food processing equipment
Final Thoughts
Upgrade your control system with confidence. The EARU SSR series combines durability, precision, and affordability in one compact package. Whether you’re a professional engineer or an enthusiastic maker, this relay will elevate your project’s performance and reliability.
Don’t miss out – click below to secure yours today at the unbeatable price of $4.07!
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