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Square D MEF36200LSG - Molded Case Circuit Breaker 200A 3-Pole

Square D
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Square D MEF36200LSG is a 200A, 3-pole molded case circuit breaker designed for primary protection in industrial power distribution systems. It operates at a voltage rating of 600V with a solid-state Micrologic trip unit providing LSIG (Long-Time, Short-Time, Instantaneous and Ground Fault) protection, and an interrupting capacity of 65kA at 480V. The unit features a bolt-on connection, weighs 50 lb, and is built on a 3-phase, LE frame (250A frame) with a thermal-magnetic trip mechanism. It is UL listed and CSA certified, ensuring compliance with safety standards for commercial and industrial environments. This breaker is suited for applications requiring precise, adjustable protection in high-fault-current settings, though it does not include lugs.

Key Features & Specifications
  • Type: Molded Case
  • Family: Micrologic
  • Type: MEF
  • Weight: 50 lb
  • Functions: LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Solid State
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 200A
  • Amperage: 200 Amp
  • Interrupt Rating: 65kA @ 480V
  • Mounting Type: Bolt-On
  • Trip Unit: Thermal-Magnetic
  • Frame/Series: LE Frame (250 Amp Frame)
  • Certifications: UL Listed, CSA Certified