Siemens F321SSR Stainless Steel Safety Disconnect Switch

Siemens F321SSR is a 30 A safety disconnect switch rated for 240 V AC, housed in a 316-grade stainless steel enclosure with a 4/4X rating for Type 4/4X protection in harsh environments. This rugged, open-disconnect device provides a safe means to isolate power to electrical equipment and motor circuits, enabling lockout/tagout and maintenance while resisting corrosion from washdown, moisture, and chemicals. Typical applications include industrial machinery, conveyors, pumps, and compressors where a durable, weather-resistant disconnect is required. Key specifications verified for this model include a 30 A current rating, 240 V AC operating voltage, and a stainless steel enclosure designed for indoor or outdoor installation in challenging environments. The F321SSR is intended to serve as a dedicated power disconnect in safety-critical control circuits, aligning with Siemens' heavy-duty safety switch families for robust, code-compliant isolation.