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NB1-6KA-2P-C40 - MCB 40A 2-Pole 6kA (240V AC)

United Fuses
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The NB1-6KA-2P-C40 is a compact miniature circuit breaker designed for overcurrent and short-circuit protection in residential and light commercial electrical systems. It is rated for 40 amperes at 240 volts AC, with a 6 kA interrupting capacity to safely clear fault currents. This two-pole breaker features a thermal-magnetic trip mechanism and a robust thermoplastic housing, weighing 5.19 lb for secure panel mounting. It complies with IEC 60898-1 standards for performance and safety, ensuring reliable operation in branch circuit protection. Typical applications include lighting, heating, and general-purpose load centers in industrial and commercial distribution boards.

Key Features & Specifications
  • Type: Miniature Circuit Breaker (MCB), thermal-magnetic, two-pole
  • Voltage Rating: 240 V AC
  • Current Rating: 40 A
  • AIC Rating: 6 kA
  • Poles: 2
  • Trip Type: Thermal-magnetic
  • Breaker Type: Miniature
  • Weight: 5.19 lb
  • Standards: IEC 60898-1
  • Applications: Branch circuit protection in residential and light commercial load centers


Product Identification
  • UPC: Not provided
  • GTIN: Not provided