Siemens 3RF2120-3AA04

The solid state relay is designed for 1-pole operation, with a maximum operational current of 20 A and a voltage range of 48 to 460 V AC, making it suitable for various industrial applications. The device operates with a 24 V DC coil, allowing for efficient control within a modular setup.

With a compact width of 22.5 mm, this relay utilizes ring cable terminals for secure connections. It is capable of zero-point switching and adheres to UL standards, ensuring reliability and safety in operation. The relay's insulation voltage is rated at 600 V, while its surge voltage resistance reaches up to 6 kV, making it robust against voltage spikes.

Designed for installation in environments up to 1,000 m above sea level, it operates effectively within a temperature range of -25 to +60 °C. The device is classified under protection class IP00, and with an optional cover, it can achieve IP20, enhancing safety against contact.

Notable specifications include a maximum power loss of 28.6 VA and a shock resistance of 15g over 11 ms, ensuring durability against mechanical stress. The relay is equipped with removable terminals for both auxiliary and control circuits, facilitating easy installation and maintenance. Accessories such as terminal covers and converters can be ordered separately to enhance functionality.

In addition, the relay complies with various electromagnetic compatibility standards, including burst and surge immunity, catering to demanding industrial environments.