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Square D Q1B340 - Molded Case Circuit Breaker 40A 240V 3-Pole

United Fuses
Price
Save $-382.47
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Square D Q1B340 is a three-pole molded case circuit breaker from the Q1B Series, designed for overcurrent protection in industrial electrical systems. It provides LI (Long-Time and Instantaneous) protection functions with a thermal magnetic trip mechanism, rated for 240V AC and 40A continuous current. This compact unit weighs 1 lb and features a 10kA interrupting capacity at 240V, suitable for three-phase applications requiring reliable fault interruption. The breaker complies with industry standards for molded case circuit breakers, ensuring safe operation in panelboards and distribution equipment. Typical applications include motor control centers, lighting panels, and branch circuit protection in commercial and light industrial facilities.

Key Features & Specifications
  • Type: Q1B Series Molded Case Circuit Breaker, thermal magnetic protection
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Poles: 3
  • Phase: 3
  • Protection: LI - Long-Time and Instantaneous
  • AIC rating: 10kA@240V
  • Weight: 1 lb
  • Functions: Long-Time and Instantaneous trip
  • Item Subcategory: Molded Case
  • Family: Q1B Series


Product Identification
  • UPC: Not available
  • GTIN: Not available