Square D D321N is a fusible safety switch designed for providing reliable circuit isolation and overcurrent protection in industrial and commercial electrical systems. It is rated for 30A at 240V AC in a 3-phase configuration and features a 100kA interrupting capacity at 240V for robust short-circuit protection. The switch is constructed with a durable NEMA 1 enclosure measuring 234.95 mm H x 184.15 mm W x 92.20 mm D and weighs 4.451 lb, and it is UL listed for safety compliance. This disconnect is part of the Series E family and is compatible with RLF frames and Class R fuses, making it suitable for use in motor control centers, industrial machinery, and power distribution panels where a fusible disconnect is required.
Key Features & Specifications
Type: Fusible Safety Disconnect Switch, Series E, Type D
Voltage Rating: 240V AC
Current Rating: 30A
Dimensions: 234.95 mm H x 184.15 mm W x 92.20 mm D (9.25 in x 7.25 in x 3.63 in)
Standards: UL Listed
Applications: Industrial machinery, motor control centers, power distribution panels
Switch Type: Fusible Disconnect
Configuration: Single
Phase: 3
AIC Rating: 100kA @ 240V
Poles: 3
Protection: Overcurrent and short-circuit (via external Class R fuses)
NEMA Rating: NEMA 1
Fuse Class: R
Compatible Frames: RLF
Weight: 4.451 lb
Country of Origin: Mexico
Product Identification
UPC: 785901461036
GTIN: 00785901461036
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Square D D321N - Fusible Disconnect Switch 30A 240V 3P