Schneider Electric DU221RB Nonfused Disconnect Switch

Schneider Electric's Square D DU221RB general‑duty safety switch is a nonfused, 2‑pole disconnect rated for 30 A at 240 V AC on a 1‑phase circuit. Housed in a NEMA 3R enclosure with bolt‑on hub provision, it supports indoor or outdoor installation and provides a clear isolation point for servicing equipment. The unit uses a 2‑wire, 240 V, 1‑phase configuration and is designed for manual disconnection rather than fuse protection. Intended for residential and light commercial applications, it finds use with loads such as pumps, fans, compressors, or outdoor electrical equipment where a safe, code‑compliant means of isolation is required. The DU221RB supports up to 3 horsepower for 1‑phase motors at 240 V, 60 Hz, and is compatible with Schneider Electric's general‑duty disconnect family for consistent mounting footprints and replacement parts. This model's 3R enclosure rating denotes outdoor suitability, while the bolt‑on hub provision offers flexible wiring options for field installation. In service, it provides a straightforward, code‑compliant disconnect that installers can lock out during maintenance and emergency shutdown, ensuring a reliable isolation point when work is performed on connected equipment.