Siemens Industry, Inc. JU321 Safety Switch Disconnect

The Siemens Industry I-T-E JU321 Safety Switch Disconnect is a three-pole, non-fusible general‑duty disconnect designed to provide a dedicated 30 A circuit isolation point for 240 VAC loads. It is rated to handle up to 7.5 horsepower at 240 VAC, making it suitable for small to mid‑sized motor circuits and other 240‑volt equipment in light industrial or commercial settings. As a non‑fusible switch, there are no internal fuses to replace, offering a straightforward on/off mechanism for servicing and maintenance. The unit is intended for indoor installations and typically comes in a compact enclosure suitable for control panels or electrical rooms, aligning with standard safety practices for lockout/tagout procedures. Sold under the Siemens I‑T‑E legacy line and commonly used as a motor disconnect on 240 V systems, the JU321 provides a reliable disconnect solution for applications such as small pumps, conveyors, and other 240 V machinery where a simple, rugged disconnect is required. This model focuses on delivering a dependable, code‑compliant isolation point without the complexity of fused protection, making it a practical choice for compact control schemes that demand clear, immediate power shutoff in industrial environments.