SSR relay RSR72-48D40-RH RSR72-48D40-RH 1-phase 2616007

Solid State Relays RSR72 – Reliable AC Load Control

Solid State Relays RSR72 by Relpol are components dedicated to industrial applications, providing efficient and fail-safe switching of single-phase loads. They are characterized by instantaneous activation, which is crucial in applications requiring precise control. The RSR72-48D40-RH model features a load voltage of 480 V AC and a control input accepting signals of 4…32V DC. An integrated heatsink ensures effective heat dissipation, increasing the device's lifespan and stability.

Construction and practical application

RSR72 relays are based on semiconductor technology, eliminating mechanical elements prone to wear. This translates to a longer lifespan, quiet operation, and no generation of electromagnetic interference. This makes them ideal for use in environments sensitive to interference. A wide range of control voltages (4-32V DC) allows for easy integration with various control systems. The use of a heatsink allows operation with a rated AC1 load of up to 40A at 480V AC, making them suitable for demanding industrial applications.

Advantages and benefits for installers and users

• High reliability: The absence of moving parts minimizes the risk of failure and ensures long-term operation.
• Fast switching: Instantaneous activation enables precise load control.
• No interference: Eliminates electromagnetic interference, which is important in sensitive applications.
• Easy installation: Designed for mounting on a 35mm DIN rail, which simplifies installation in control cabinets.
• Effective cooling: Integrated heatsink ensures optimal heat dissipation, increasing efficiency and device lifespan.
• Versatility: A wide range of control voltages (4…32V DC) enables cooperation with various control systems.
• Environmental resistance: Operation at temperatures from -30...+80°C and an IP20 protection degree ensure reliability in harsh industrial conditions.
• Safety: Compliance with standards ensures safe operation of the device.

RSR72 relays are used in many branches of industry, including:

• injection molding machines
• industrial mills
• industrial washing machines
• temperature chambers
• packaging machines
• lighting systems
• three-phase motor control (in combination with appropriate circuits)
• plastics and food processing

Thanks to their durability and resistance to vibrations and chemicals, they can operate even in an aggressive industrial environment. Mounting one next to another requires maintaining a minimum distance of 30mm to ensure adequate air circulation and effective cooling.