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Cutler-Hammer EBMBB WT20EHD34 - Explosionproof Breaker 20A 480VAC

Cutler Hammer
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The Cutler-Hammer EBMBB WT20EHD34 is an explosionproof circuit breaker designed to provide overcurrent protection in hazardous industrial environments. It is rated for 20 amps of continuous current and supports a voltage rating of 480 VAC or 250 VDC, making it suitable for both AC and DC power systems. This three-pole unit features a 100-amp frame size, measures 14.78 inches in depth, 26.9 inches in height, and 10.25 inches in width, and weighs 141 pounds, with a NEMA 3-rated enclosure for outdoor or weatherproof installations. It complies with NEC and CEC standards, ensuring safe operation in classified locations. Typical applications include oil refineries, chemical plants, and other facilities requiring robust circuit protection against explosive atmospheres.

Key Features & Specifications
  • Type: EBMB Explosionproof Circuit Breaker
  • Voltage Rating: 480 VAC / 250 VDC
  • Current Rating: 20 A
  • Dimensions: 14.78 in x 26.9 in x 10.25 in (Length/Depth x Height x Width)
  • Standards: NEC / CEC
  • Applications: Hazardous industrial environments, oil refineries, chemical plants
  • Breaker Type: EHD
  • Nema Rating: 3
  • Poles: 3
  • Frame Size: 100 A
  • Weight: 141 lb


Product Identification
  • UPC: 782274701929