Square D QMB3640M - Fusible Safety Switch 400A@600V (200kA AIC, 3-Pole)
Square D QMB3640M Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB3640M - Fusible Safety Switch 400A@600V (200kA AIC, 3-Pole)
Square D QMB3640M Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMB3640M - Fusible Safety Switch 400A@600V (200kA AIC, 3-Pole)

Square D
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Square D QMB3640M is a fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 600V AC-rated switch handles 400A continuous current with a 200kA interrupting capacity at 480V, featuring a rugged NEMA 1 enclosure for indoor use. The three-pole single-configuration unit weighs 65 lb and integrates Class R fuses for enhanced short-circuit protection. Compliant with industrial safety standards, it's engineered for compatibility with HHED frames in three-phase applications where reliable circuit isolation is critical.

Key Features & Specifications
  • Type: QMB Saflex fusible safety switch, panel mount
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • Fuse Class: R
  • AIC Rating: 200kA@480V
  • NEMA Rating: 1
  • Switch Style: Fusible
  • Compatible Frames: HHED
  • Weight: 65 lb