The Square D DU323RB is a heavy-duty, non-fusible safety disconnect switch designed for the safe isolation of three-phase electrical circuits in industrial and commercial applications. It is rated for 100A at 240V AC with a high interrupting capacity of 100kA, housed in a robust NEMA 3R enclosure measuring 444.5 mm H x 266.7 mm W x 165.1 mm D and weighing 14.989 lb for outdoor durability. This UL-listed switch features a three-pole, single-throw configuration compatible with NSE frames and accepts copper wire sizes from 14 to 1/0 AWG or aluminum from 12 to 1/0 AWG, ensuring reliable performance and compliance with industry safety standards for motor control and main power disconnection.
Key Features & Specifications
Type: Non-Fusible Disconnect Switch, Series E, DU Type