SSR relay RSR72-28A40-H RSR72-28A40-H 1-phase 2615997

Solid State Relays RSR72 – reliable control of AC loads

Solid State Relays RSR72 Relpol are components dedicated to switching AC loads in industrial applications. They are characterized by high mechanical strength and elimination of electromechanical interference, which translates into longer lifespan and stable operation of control systems. The RSR72-28A40-H model features an integrated heatsink, providing effective heat dissipation and enabling operation in demanding conditions.

Characteristics and application

The RSR72-28A40-H relay is designed for mounting on a 35mm DIN rail. Its design with a built-in heatsink simplifies installation and ensures optimal cooling. This relay offers the possibility of switching at zero crossing or at any time, increasing its versatility. The control input voltage is 90…280 V AC, making it compatible with a wide range of control systems. The rated load voltage is 240 V AC, and the AC1 load current is 40 A.

Thanks to its construction and properties, RSR72 relays find application in many industries, including:

• Injection molding machines
• Industrial mills
• Industrial washing machines (plastics processing)
• Temperature chambers
• Packaging machines
• Lighting control systems
• Control cabinets and automation systems

Advantages and benefits

• No moving parts: Eliminates the risk of arcing and electromagnetic interference, increasing system reliability.
• Integrated heatsink: Enables efficient heat dissipation, ensuring stable operation even under heavy loads.
• Zero-crossing or any-time switching: Increases flexibility in various applications.
• High resistance to environmental conditions: Operation in harsh industrial environments (vibration, dust, chemicals).
• Long lifespan: The lack of mechanical elements extends the relay's service life.
• Quiet operation: The absence of moving parts eliminates noise during operation.
• DIN rail mounting: Facilitates installation and integration with existing control systems.

Remember to maintain a minimum distance of 30 mm when mounting several relays side by side to ensure adequate air circulation and prevent overheating.