Siemens 3RF2330-1AA45 Industrial Safety Relay

Siemens 3RF2330-1AA45 is a one‑channel solid‑state safety relay in the SIRIUS 3RF2 family. It accepts a 4–30 V DC control signal and switches a safe output rated up to 30 A for loads from 48 to 600 VAC (single‑phase). The DIN‑rail‑mountable module is designed for safety circuits in industrial automation, enabling fast, quiet switching of protective functions such as emergency‑stop circuits, guarding devices, and safety interlocks. The 3RF2330-1AA45 variant is used when a compact, reliable safety relay is needed to interface a safety‑rated input with a higher‑current AC load, and it integrates with other 3RF2 components to build safeguarding concepts for machines and lines. Typical applications include driving external safety devices like contactors or safety controllers while maintaining a compact footprint on a 35 mm DIN rail, supporting scalable safeguarding across machine zones and production lines.