Boltswitch ER425NST Bolted Pressure Switch (Fusible) - Essential Electric Supply
Boltswitch ER425NST Bolted Pressure Switch (Fusible) - Essential Electric Supply

Boltswitch ER425NST - Fusible Bolted Pressure Switch 400A@240V (200kA AIC)

Boltswitch
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Boltswitch ER425NST is a fusible bolted pressure switch designed for high-current industrial power distribution systems. This 3-phase switch features a 240V voltage rating and 400A current capacity with a 200kA interrupting rating at 240V for robust short-circuit protection. The unit's rugged construction includes a NEMA 1 enclosure, weighs 250 lb, and utilizes Class R fuses in a single-configuration design with 3 poles. It complies with industry standards for bolted pressure switches and is compatible with TEB frames. Typical applications include motor control centers, switchgear, and heavy industrial power management systems where high fault current interruption is critical.

Key Features & Specifications
  • Type: Fusible bolted pressure switch (ER Series)
  • Voltage Rating: 240V AC
  • Current Rating: 400A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA@240V
  • Fuse Class: R
  • NEMA Rating: 1
  • Compatible Frames: TEB
  • Weight: 250 lb
  • Switch Style: Fusible
  • Item Subcategory: Bolted Pressure