Square D D324NRB Rainproof 3R Enclosed Safety Disconnect Switch

Square D D324NRB rainproof 3R enclosed safety disconnect switch is a 200 A fusible general‑duty device intended for outdoor service. It is a 3‑pole, 4‑wire switch rated for 240 VAC and up to 60 HP, with a neutral terminal and a bolt‑on hub provision for mounting and wiring. The enclosure carries a Type 3R rainproof rating (NEMA 3R) suitable for exposed outdoor use and wet environments. Standard fuse configuration uses Class H or Class K fuses; Class R fuses are supported with the HRK1020 field kit for Series F, enabling up to 100 kA available fault current. This safety switch provides a dedicated disconnect point for circuits such as lighting, air conditioning, and other outdoor loads, combining straightforward manual operation with code‑compliant protection in a weatherproof enclosure. It is commonly used for service entrances and feeders in residential and light commercial settings where an outdoor disconnect is required.