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NEB2B040

Siemens
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Siemens NEB2B040 is a 2-pole molded case circuit breaker from the NEB Series, designed to provide thermal magnetic protection for power distribution systems. It is rated for 40A continuous current at 600V AC, with an interrupting capacity of 35kA at 480V, and utilizes LI (Long-Time and Instantaneous) trip functions for coordinated overload and short-circuit protection. The unit features a bolt-on connection with load-side lugs, weighs 2 lb, and is constructed for single-phase applications. It complies with industry standards for reliable performance in demanding electrical environments. This breaker is suited for industrial and commercial panelboards and distribution equipment requiring dependable circuit protection.

Key Features & Specifications
  • Type: Molded Case
  • Family: NEB Series
  • Poles: 2
  • Current Rating: 40A
  • Voltage Rating: 600V AC
  • Interrupting Rating: 35kA at 480V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Phase: 1
  • Weight: 2 lb
  • Mounting: Bolt-On with Load-Side Lugs
  • Frequency: 50/60 Hz


Siemens NEB2B040 - Molded Case Circuit Breaker 40A 2-Pole