Siemens SN425 - Fusible Disconnect Switch 400A@240V (200kA AIC)
Siemens SN425 - Fusible Disconnect Switch 400A@240V (200kA AIC)

Siemens SN425 - Fusible Disconnect Switch 400A@240V (200kA AIC)

Siemens
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Siemens SN425 is a fusible safety disconnect switch designed for industrial power distribution systems requiring high fault current protection. It features a 240V AC voltage rating and 400A current capacity with a 200kA interrupting rating at 240V for reliable circuit isolation. The rugged NEMA 1 enclosure houses a 3-pole single-configuration mechanism with Class R fuse compatibility and PJP frame mounting. Compliant with industrial safety standards, this switch is engineered for heavy-duty applications including motor control centers, panelboards, and switchgear installations.

Key Features & Specifications
  • Type: Fusible safety disconnect switch with quick-make/quick-break mechanism
  • Voltage Rating: 240V AC
  • Current Rating: 400A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA@240V
  • Fuse Class: R
  • Wire Size: 4 AWG
  • Compatible Frames: PJP
  • NEMA Rating: 1
  • Switch Style: Fusible
  • Weight: 35 lb