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Square D Q1340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)

Square D
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Square D Q1340 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 40A current rating and a 240V AC voltage rating, utilizing a three-pole, plug-in configuration for straightforward installation. The breaker employs a thermal-magnetic trip mechanism offering both long-time and instantaneous (LI) protection functions, housed within a durable molded case with a compact form factor weighing 2 lb. It is engineered to meet industry standards for circuit protection, including an interrupting capacity of 10kA at 240V, making it suitable for a range of commercial and light industrial panelboard applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Q1 Series, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Poles: 3
  • Phase: 3
  • Connection: Plug-In
  • Protection Functions: LI (Long-Time and Instantaneous)
  • AIC Rating: 10kA @ 240V
  • Weight: 2 lb