SSR relay RSR72-48D40-H RSR72-48D40-H 1-phase 2615992

Solid State Relays – Reliable Load Control

The RSR72-48D40-H solid state relay is a robust solution for switching AC loads, especially where high switching frequency and long service life are required. The design with a built-in heatsink ensures efficient heat dissipation, which translates to stable operation even under heavy loads. Designed for panel or DIN rail mounting, it finds application in a wide range of industrial and automation applications.

Characteristics and application

This single-phase SSR is characterized by zero-crossing switching, which minimizes electromagnetic interference and extends the life of both the relay and the connected devices. The control voltage in the range of 4…32V DC ensures compatibility with various control systems. The rated AC1 load current is 40A at 480V AC, allowing control of significant loads. This makes it suitable for applications such as:

• Electric heater control
• Switching medium-power motors
• Industrial lighting
• Automation and process control systems
• Control cabinets

Construction and user features

The RSR72-48D40-H relay has been designed with durability and reliability in mind. The built-in heatsink eliminates the need for additional cooling elements, simplifying installation and reducing costs. The IP20 protection class provides basic protection against touch and dust. A wide operating temperature range (-30…80°C) allows its use in harsh environmental conditions. Zero-crossing switching is not only a reduction of interference, but also protection against damage to sensitive electronic components. DIN rail mounting simplifies integration with existing control systems, and compact dimensions (50.5x122x110mm) allow for saving space in control cabinets.