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Cutler Hammer QA-2533 - Fusible Switch 2500A @ 480V (200kA AIC, NEMA 3R)

Cutler Hammer
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Cutler Hammer QA-2533 is a bolted pressure switch designed for high-current industrial power distribution systems, featuring a fusible switch style with Class L fuse protection. It operates at 480V AC with a 2500A current rating and 200kA interrupting capacity, housed in a NEMA 3R-rated enclosure for outdoor durability. The three-pole single-configuration switch is constructed with heavy-duty components, weighing 150 lb, and is compatible with TFK frames for seamless integration. Compliant with industrial safety standards, this Pringle family switch is engineered for demanding applications such as main service disconnects, motor control centers, and large-scale power distribution panels.

Key Features & Specifications
  • Type: Bolted pressure fusible switch, Class L fuse protection
  • Voltage Rating: 480V AC
  • Current Rating: 2500A
  • Configuration: Single
  • Poles: 3
  • AIC Rating: 200kA @ 480V
  • Phase: 3
  • NEMA Rating: 3R (weather-resistant)
  • Compatible Frames: TFK
  • Weight: 150 lb
  • Standards: Industrial safety compliance
  • Applications: Main service disconnects, motor control centers, power distribution