Solid State Relay SSR-25DA 25A 250V AC – 3–32V DC Control

The SSR-25DA Solid State Relay is a high-performance electronic switching device designed for reliable and silent control of AC loads using a low voltage DC signal. With a 25A load capacity and 3–32V DC input control, this relay is ideal for automation systems, industrial control, and DIY electronics projects.

Unlike traditional mechanical relays, the SSR-25DA offers fast switching, no moving parts, and extended lifespan, making it perfect for applications requiring frequent switching and long-term reliability.

Key Features

• High Load Capacity – Supports up to 25A AC load
• Wide Control Voltage Range – 3–32V DC input compatibility
• AC Output Switching – 24–480V AC load control
• Silent Operation – No mechanical noise or contact wear
• Long Lifespan – Solid state design for durability
• Built-in LED Indicator – Shows operating status
• Compact Design – Easy to mount in control panels

Technical Specifications

• Model: SSR-25DA
• Input Voltage: 3–32V DC
• Output Voltage: 24–480V AC
• Load Current: 25A
• Dimensions: 60 x 45 x 23mm
• Mounting Type: Panel mount (with heatsink compatibility)
• Isolation Type: Optical isolation

Applications

• Industrial automation systems
• Temperature control (heaters, ovens, 3D printers)
• Lighting control systems
• Motor and pump switching
• PLC and microcontroller projects (Arduino, ESP32, etc.)
• Home automation and smart control systems

Important Notes

• A heatsink is recommended when operating near maximum load (25A)
• Designed for AC load switching only (DC output requires a different model)
• Ensure proper wiring and electrical safety when installing

Why Choose the SSR-25DA?

The SSR-25DA is a reliable, efficient, and maintenance-free alternative to mechanical relays. Its ability to handle high current loads with low control voltage makes it a go-to solution for both professional and DIY electronic applications.