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Square D EDB34040SA - 3P Molded Case Breaker 40A 480V

Square D
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The Square D EDB34040SA is a three-pole molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for three-phase electrical systems. It features a 40A current rating and a 480Y/277V voltage rating, housed within a compact 125A frame with dimensions of 143.76 mm H x 99.57 mm W x 102.87 mm D and a weight of 4.21 lb. This thermal magnetic breaker is cULus and IEC certified, ensuring compliance with key industry standards for safety and performance. Its 18kA interrupting rating at 480V and bolt-on lug connection make it suitable for installation in NF panelboards for commercial and industrial power distribution.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection with Long-Time and Instantaneous (LI) Functions
  • Voltage Rating: 480Y/277V AC
  • Current Rating: 40A
  • Dimensions: 143.76 mm H x 99.57 mm W x 102.87 mm D (5.66 in x 3.92 in x 4.05 in)
  • Standards: cULus, IEC
  • Applications: Three-phase power distribution in commercial and industrial NF panelboards
  • Switch Type: Shunt Trip (complete with 120V shunt trip)
  • Configuration: Bolt-On
  • Temp Rating: 40 °C (104 °F)
  • Phase: 3
  • AIC Rating: 18kA @ 480V
  • Connection: Lug
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: 125A/EDB
  • Panel Type: NF panelboard
  • Breaker Type: Shunt Trip
  • MCM Size: Min. Wire Size 12 AWG (Al), 14 AWG (Cu); Max. Wire Size 2 AWG
  • Wire Size: AWG 12 to AWG 2/0 (Aluminum), AWG 14 to AWG 2/0 (Copper)
  • Certification: cULus, IEC
  • Family: EDB Series
  • Country of Origin: Mexico
  • Weight: 4.21 lb


Product Identification
  • UPC: 078590110331
  • GTIN: 00785901103318