SSR relay RSR72-48A20-H RSR72-48A20-H 1-phase 2616000

Solid State Relay SSR – Reliable Load Control

The RSR72-48A20-H solid state relay is a robust solution for switching AC loads, especially where high switching frequency and reliability are required. This single-phase relay with a built-in heatsink, manufactured by RELPOL S.A., is characterized by efficient heat dissipation and long service life. The use of zero-crossing technology minimizes interference and ensures smooth operation of controlled devices.

Construction and application

The RSR72-48A20-H relay is designed to operate with loads at 480 V AC. Its construction based on semiconductor elements eliminates moving parts, which translates to quiet operation, no sparking, and increased resistance to vibration. This makes it ideal for industrial applications where reliability and durability are required. The integrated heatsink simplifies installation and ensures optimal cooling, even under high loads.

Advantages and benefits

• Zero-crossing switching: Reduces electromagnetic interference (EMI) and extends the life of the relay and connected devices.
• High damage resistance: The lack of mechanical elements increases resistance to vibration, impact and wear.
• Efficient heat dissipation: The built-in heatsink ensures stable operation even at high load current (up to 48A).
• Wide range of control voltages: The 90…280 V AC control input allows easy integration with various control systems.
• Versatility: Suitable for controlling various AC loads, such as heaters, motors or lighting.
• RELPOL reliability: Product of a renowned Polish manufacturer, guaranteeing high quality workmanship and long-term operation.

This relay finds application in control cabinets, industrial automation systems, temperature control systems and in applications requiring frequent switching of loads without the risk of damage to actuators. This is particularly important in plastics or food processing machines, where processes require precise and reliable energy control.