Schneider Electric D 321-N Safety Disconnect Switch

Schneider Electric's Square D D321N general-duty fusible safety disconnect switch is a 30 A, 240 V AC, 3‑pole, 4‑wire device with a factory‑installed neutral, designed for residential and light commercial applications. The surface‑mounted, NEMA 1 enclosure uses lug terminals and accepts H, K, or R fuses to provide fusible protection with a quick‑make/quick‑break mechanism. It carries a short‑circuit current rating up to 100 kA (depends on fuse type) and measures 9.25 in high, 7.25 in wide, and 3.63 in deep, with a net weight of about 19.8 lb. UL listed and intended for indoor isolation of lighting, air conditioning, and appliances.