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Square D 999340 - Molded Case 40A 3-Pole 600V

Square D
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Square D 999340 is a 40A, 600V, 3-pole molded case circuit breaker from the 99 Series, designed to provide LI (Long-Time and Instantaneous) protection for electrical circuits. This Type 999 unit features a bolt-on connection and a thermal magnetic trip mechanism, with a standard interrupting capacity of 10kA at 600V for three-phase applications. Weighing 8 lb, it is constructed for robust performance in industrial and commercial environments, ensuring reliable overcurrent protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Part Number: 999340
  • Item Subcategory: Molded Case
  • Family: 99 Series
  • Type: 999
  • Weight: 8 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@600V
  • Phase: 3
  • Current Rating: 40A
  • Amperage: 40A
  • Mounting Type: Bolt-On
  • Phase: 3-Phase
  • Trip Unit: Standard Thermal-Magnetic