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Siemens NMX3B800L - Molded Case Circuit Breaker 800A 600V 3P

Siemens
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Siemens NMX3B800L is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial power distribution systems. It features a thermal-magnetic trip unit with long-time and instantaneous functions, rated for 800A at 600V AC in a 3-pole configuration. The breaker is constructed within a robust MG frame with a feed-thru connection style, capable of accepting copper or aluminum conductors from AWG 1/0 to 500 kcmil, and operates effectively across a temperature range of -25 to 70 °C. It complies with relevant industry standards for safety and performance, offering an interrupting capacity of 35kA at 480V AC. This breaker is typically applied in panelboards, switchboards, and as a service entrance device in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 800A
  • Frame Size: MG Frame
  • Poles: 3
  • Connection: Feed-Thru
  • Wire Size: AWG 1/0 to 500 kcmil, Cu/Al
  • AIC Rating: 35kA @ 480V AC
  • Phase: 3
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Functions: Long Time and Instantaneous Trip
  • Protection: Thermal Magnetic
  • Weight: 41 lb
  • Family: VL Series
  • Model Type: NMX


Product Identification
  • UPC: 078364361189
  • GTIN: 00783643611894