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Square D QMB3660 - Fusible Bus Plug 600A (200kA AIC, 600V)

Square D
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Square D QMB3660 is a fusible bus plug designed for providing branch circuit protection and isolation in industrial power distribution systems. It features a 600A current rating and a 600V voltage rating for robust three-phase applications, constructed within a NEMA 1 rated enclosure for indoor use. The unit is engineered with Class R fuses and is compatible with NSX frames, offering a high interrupting capacity of 200kA at 480V to ensure system protection. This single-configuration, three-pole device is built to meet industrial standards for reliable power distribution in manufacturing and commercial facilities.

Key Features & Specifications
  • Type: Fusible bus plug, QMB Saflex family
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Phase: 3
  • Poles: 3
  • Configuration: Single
  • AIC Rating: 200kA at 480V
  • Fuse Class: R
  • Switch Style: Fusible
  • Compatible Frames: NSX
  • NEMA Rating: 1
  • Weight: 38 lb