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Square D PLA34120 - Molded Case Circuit Breaker 1200A 480V 3P

Square D
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Square D PLA34120 is a molded case circuit breaker designed for providing robust overcurrent protection in demanding three-phase industrial power distribution systems. It features a solid-state trip unit with Long-Time and Instantaneous (LI) protection functions, rated for 480V AC systems with a 1200A continuous current rating and a 100kA interrupting capacity. The breaker is constructed with a P-Frame in a compact form factor measuring 410.46 mm H x 210.06 mm W x 204.47 mm D and weighs 32 lb, utilizing an I-Line style plug-in connection for conductors from AWG 3/0 to 500 kcmil. It complies with major industry standards including UL, CSA, NEMA, NOM, and IEC 60947-2, and is designed for reliable operation within an ambient temperature range of -2 to 70 °C. This breaker is typically applied in industrial facilities, data centers, and large commercial buildings for main feeder and branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker (MCCB) with Solid-State Trip Unit
  • Voltage Rating: 480V AC
  • Current Rating: 1200A
  • Dimensions: 410.46 mm H x 210.06 mm W x 204.47 mm D (16.16 in x 8.27 in x 8.05 in)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Main Feeders, Branch Circuits
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Phase: 3
  • AIC Rating: 100kA @ 480V
  • Connection: I-Line Style Plug-In
  • Poles: 3
  • Protection: Solid State
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: P Frame
  • Wire Size: 4 x AWG 3/0...500 kcmil (Aluminium/Copper)
  • Certification: UL, CSA, NOM
  • Weight: 32 lb
  • Family: Powerpact
  • Country of Origin: United States


Product Identification
  • UPC: 785901497318
  • GTIN: 00785901497318