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Square D EDB34125AABASA - 3P Molded Case Breaker 125A 480V

Square D
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The Square D EDB34125AABASA is a three-pole molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for three-phase industrial power distribution systems. It features a 125A continuous current rating and a 480V AC voltage rating, with a robust thermal-magnetic trip mechanism offering both long-time delay and instantaneous (LI) protection functions. The breaker is constructed with a compact bolt-on connection design, measuring 143.76 mm H x 99.57 mm W x 102.87 mm D and weighing 4.178 lb, and it is rated for operation in ambient temperatures up to 40°C. It complies with cULus and IEC standards and carries an interrupting capacity of 18kA at 480V AC. This unit is typically applied in NF-style panelboards and is supplied as a complete package with an auxiliary switch, alarm switch, and shunt trip, accommodating copper conductors from AWG 14 to 2/0 and aluminum from AWG 12 to 2/0.

Key Features & Specifications
  • Type: Three-pole molded case circuit breaker with thermal-magnetic protection and LI (Long-time & Instantaneous) functions
  • Voltage Rating: 480V AC
  • Current Rating: 125A
  • 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 NF panelboards
  • Switch Type: Includes auxiliary and alarm switch
  • Configuration: Three-pole
  • Temp Rating: 40°C (104°F)
  • Phase: 3
  • AIC rating: 18kA @ 480V AC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Panel Type: NF panelboard
  • Breaker Type: Molded Case
  • Wire Size: AWG 12...AWG 2/0 aluminum; AWG 14...AWG 2/0 copper
  • Certification: cULus, IEC
  • Terminal Connection: Lug
  • Additional Info: Complete with auxiliary switch/alarm switch/shunt trip package
  • Weight: 4.178 lb


Product Identification
  • UPC: 785901950202
  • GTIN: 00785901950202