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Siemens ND63B900 - Molded Case Circuit Breaker, 900A 3P (50kA AIC)

Siemens
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Siemens ND63B900 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 900A current rating and a 600V AC voltage rating, housed within a compact ND frame with a feed-thru connection for straightforward installation. The breaker utilizes a thermal-magnetic trip unit offering long-time and instantaneous (LI) protection functions and is constructed to accept copper or aluminum conductors sized from 250 to 500 KCMIL. It complies with UL and CSA standards, boasting an interrupting capacity of 50kA at 480V AC, making it suitable for service entrance, feeder protection, and main circuit protection in commercial and industrial panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 900A
  • Frame Size: ND Frame
  • Poles: 3
  • Connection: Feed-Thru
  • Wire Size: 250 - 500 KCMIL (Copper/Aluminum)
  • Protection Functions: Long-Time and Instantaneous (LI)
  • AIC Rating: 50kA @ 480V AC
  • Phase: 3
  • Certification: UL, CSA
  • Family: Sentron Series
  • Country of Origin: Mexico
  • Weight: 0.022 lb


Product Identification
  • UPC: 783643215399
  • GTIN: 00783643215399