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Square D MEFC836LIG - Molded Case Circuit Breaker 800A 600V

Square D
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Square D MEFC836LIG is a 3-pole molded case circuit breaker designed for primary power distribution protection in industrial environments. It is rated for 800A frame size with a 600V voltage rating and a solid-state Micrologic trip unit providing Long-Time, Instantaneous, and Ground Fault (LIG) functions. The unit features a bolt-on connection, weighs 75 lb, and does not include lugs. It carries an interrupting rating of 100kA at 480V and complies with applicable industry standards for overcurrent protection. This breaker is suited for demanding three-phase electrical systems requiring reliable ground fault and short-circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: Micrologic
  • Type: MEFC
  • Weight: 75 lb
  • Functions: LIG - Long-Time, Instantaneous and Ground Fault
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Solid State
  • AIC rating: 100kA@480V
  • Phase: 3
  • Current Rating: 800A
  • Amperage: 800 Amp Frame, 600 Amp Trip
  • Mounting Type: I-Line Plug-In
  • Interrupt Rating: 65 kA @ 240 Vac, 50 kA @ 480 Vac, 25 kA @ 600 Vac
  • Load Side Lugs: AL900MA, 1-3 wires
  • Wire Size Range: 3/0 – 500 kcmil
  • Rating Plug: 600 Amp ME8600RP