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Mersen 20300 - Molded Case 30A 250V Circuit Breaker

Ferraz Shawmut
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The Mersen 20300 is a molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 250V AC/DC and carries a continuous current rating of 30A, providing reliable interruption of fault currents. The unit weighs 5 lb and is constructed with a compact molded case housing for panelboard installation. This breaker complies with UL 489 standards for molded case circuit breakers. It is typically used in lighting panels, motor control centers, and general-purpose branch circuit protection in manufacturing and commercial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, thermal-magnetic trip
  • Voltage Rating: 250V AC/DC
  • Current Rating: 30A
  • Weight: 5 lb
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Branch circuit protection, lighting panels, motor control centers
  • Breaker Type: Molded Case
  • Poles: 1-pole
  • Frame Size: 100A frame
  • Trip Type: Thermal-magnetic
  • Connection: Line and load terminals
  • Mounting: Plug-in or bolt-on
  • Frequency Rating: 50/60 Hz
  • Phase: Single-phase
  • Amperage: 30A
  • AIC Rating: 10kA @ 240V AC
  • Terminal Connection: Copper/aluminum rated
  • Installation Type: Panelboard
  • Country of Origin: United States


Product Identification
  • UPC: 078200175831