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Cutler Hammer FS320040A - Molded Case Circuit Breaker, 40A 3P

Cutler Hammer
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Cutler Hammer FS320040A is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 40A current rating and a 240V AC voltage rating, engineered to interrupt fault currents up to 22kA. The breaker utilizes a thermal-magnetic trip unit with long-time and instantaneous (LI) functions within a compact, 3-pole feed-thru configuration, and its robust construction meets industry standards for durability and safety in demanding environments. Typical applications include protecting feeders and branch circuits in industrial control panels, machinery, and commercial electrical systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, FS Series
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Poles: 3
  • Phase: 3
  • Connection: Feed-Thru
  • AIC Rating: 22kA @ 240V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Frame: FS
  • Weight: 3 lb