Solid-state relay, single-phase, width 45 mm, 30 A, 24-230 V / 110-230 V AC, screw connection. The SIRIUS 3RF20 solid-state relay is designed for switching resistive and inductive loads, such as heaters or valves in a filling plant. These devices operate without wear and silently, making them ideal for noise-sensitive areas like offices and hospitals. They are also extremely reliable at high switching frequencies. The compact design saves space on the cooling surface. Additionally, the solid-state relays can be easily expanded for various applications by simply snapping on the standardized function modules 3RF29. The devices are globally certified, for example, according to IEC and UL/CSA. The solid-state relays are available as single-phase devices in two widths or as three-phase devices. They come in various power ratings and nominal operating voltages. Designed for AC or DC operation, they are available with screw, spring-loaded, or ring terminal connections. Accessories include not only the function modules 3RF29 but also control plugs and terminal covers. Simple, efficient, always up-to-date - the SIRIUS system modular concept.