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Square D QO342MQ225RB - Load Center 225A Main Breaker (NEMA 3R)

Square D
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Square D QO342MQ225RB is a three-phase main breaker load center designed for providing primary circuit protection and power distribution in industrial and commercial settings. It features a 225A current rating and a 120/240V AC voltage rating for robust electrical management. The enclosure is constructed with a copper bus bar system, measures 14.77" x 39.38", weighs 47.99 lb, and is rated for operation from -25°C to 70°C (-13°F to 158°F). This panel is UL Listed, RoHS compliant, and carries a NEMA 3R rating for outdoor suitability, ensuring reliable performance in demanding environments where durable power distribution is required.

Key Features & Specifications
  • Type: QO Series Main Breaker Load Center with Copper Bus
  • Voltage Rating: 120/240V AC
  • Current Rating: 225A
  • Dimensions: 14.77 in x 39.38 in
  • Standards: UL Listed, RoHS Compliant, NEMA 3R
  • Applications: Industrial and Commercial Power Distribution
  • Phase: 3
  • Panel Style: Main Breaker
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Bus Type: Copper
  • Wire Size: AWG 4 to 300 KCMil, Aluminum/Copper
  • Weight: 47.99 lb
  • Country of Origin: United States


Product Identification
  • UPC: 785901290643
  • GTIN: 00785901290643