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Square D HDL26050 - 50A 2-Pole Circuit Breaker (18kA AIC)

Square D
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Square D HDL26050 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial electrical systems. It features a 50A current rating and a 600V voltage rating, housed within a compact 150A/HD frame with dimensions of 163 mm H x 104 mm W x 86 mm D and a weight of 3.04 lb. The breaker is constructed with thermal-magnetic protection for long-time and instantaneous (LI) tripping functions and utilizes a feed-thru connection with line/load lugs compatible with wire sizes from 14 AWG to 3/0 AWG. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, ensuring suitability for a wide range of commercial and industrial panelboard and switchboard applications where an 18kA interrupting rating at 480V is required.

Key Features & Specifications
  • Type: Standard molded case circuit breaker with thermal-magnetic protection and long-time/instantaneous (LI) trip functions
  • Voltage Rating: 600V AC
  • Current Rating: 50A
  • Dimensions: 6.4 in (163 mm) H x 4.09 in (104 mm) W x 3.4 in (86 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial panelboards and switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Feed-Thru
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Phase: 1
  • AIC rating: 18kA @ 480V
  • Connection: Feed-Thru
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: 150A/HD
  • Breaker Type: Standard
  • Wire Size: AWG 14 to AWG 3/0 (aluminium/copper terminal)
  • Certification: UL, CSA, NOM
  • Phase Connection: Not Applicable
  • Terminal Connection: Line/Load Lug
  • MCM Size: Min. Wire Size 14 AWG, Max. Wire Size 3 AWG
  • Weight: 3.04 lb


Product Identification
  • UPC: 785901461890
  • GTIN: 00785901461890