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Square D HGA36125UA - 125A 3-Pole Molded Case Circuit Breaker

Square D
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Square D HGA36125UA is a 3-pole PowerPact H molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 125 Amps at 600 Volt AC and 250 Volt DC, with a 35 kAIC interrupting capacity at 480 VAC, and features thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. The unit weighs 5 lb and utilizes an I-Line style plug-in connection for Class 611/612 panelboards and switchboards, with a non-interchangeable trip unit and toggle control operation. It complies with UL 489, CSA, CE, NEMA, and IEC standards, and operates within a temperature range of -13 to 158 degrees Fahrenheit. This breaker is suitable for demanding industrial environments requiring reliable circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Type: HGA
  • Weight: 5 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 35kA@480V
  • Phase: 3
  • Current Rating: 125A
  • Amperage Rating: 125 Amps
  • Voltage Rating: 600 Volt AC 50/60 Hz, 250 Volt DC
  • Number of Poles: 3
  • Frame Type: H-Frame
  • Connection Type: I-Line Style Plug-In
  • Trip Functions: LI - Long-Time and Instantaneous
  • Protection Type: Thermal Magnetic
  • Interrupting Rating: 35 kAIC at 480 VAC, 18 kAIC at 600 VAC, 20 kAIC at 250 VDC
  • Trip Setting: 900 Amp Hold, 1700 Amp Trip
  • Wire Size: 14 to 3/0 AWG Copper/Aluminum
  • Certifications: UL 489, CSA, CE, NEMA, IEC
  • Operating Temperature: -13 to 158 Degrees Fahrenheit


HGA36125UA