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Siemens NGB3B040L - Molded Case 40A 600V 3-Pole

Siemens
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Siemens NGB3B040L is a 3-pole molded case circuit breaker from the VL Series, designed to provide LI (Long-Time and Instantaneous) protection for electrical systems. It is rated for 40A at 600V AC with a 25kA interrupting capacity at 480V, and features a thermal-magnetic trip unit for reliable overcurrent protection. The unit weighs 3.5 lb, uses a GG Frame with bolt-on connection and feed-thru lugs, and operates within a temperature range of -13°F to 158°F. It is certified to UL and IEC standards, ensuring compliance with industry safety requirements. This circuit breaker is suitable for industrial applications requiring robust branch circuit protection in three-phase systems.

Key Features & Specifications
  • Manufacturer: Siemens
  • Model: NGB3B040L
  • Type: NGB
  • Family: VL Series
  • Item Subcategory: Molded Case
  • Poles: 3
  • Current Rating: 40A
  • Voltage Rating: 600V AC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: GG Frame
  • Connection: Bolt-On
  • Mounting Type: Feed-Thru Lugs
  • Interrupt Rating: 25kA at 480V
  • Interrupt Rating: 14kA at 600Y/347V
  • Phase: 3
  • Weight: 3.5 lb
  • Temp Rating: -13°F to 158°F
  • Certification: UL, IEC
  • Country of Origin: Mexico