Schneider Electric HJA36125 | PowerPact H-Frame 125A Molded Case Circuit Breaker

Main Description:

The Schneider Electric HJA36125 is a heavy-duty PowerPact H-Frame molded case circuit breaker engineered to protect industrial and commercial electrical systems from overloads and short circuits. Rated at 125A and 600 VAC, this breaker delivers reliable performance with a high interrupting capacity of 25 kA at 600 VAC. Its thermal magnetic LI (Long-Time and Instantaneous) trip unit ensures consistent and accurate protection, while dual-break rotating contacts help reduce peak fault currents. Designed for I-Line installation, the HJA36125 integrates seamlessly into I-Line panelboards for fast, secure mounting.

Technical Overview:

• Manufacturer: Schneider Electric

• Part Number: HJA36125

• Product Type: Molded Case Circuit Breaker

• Category: Circuit Breaker

• Subcategory: Molded Case Circuit Breaker

• Family: PowerPact H

• Range: PowerPact

• Type: HJA

• Frame Type: H Frame

• Voltage Rating: 690 VAC (IEC) / 600 VAC (UL)

• Amperage Rating: 125 A

• Phase: 3

• Poles: 3

• Interrupting Rating: 25 kA @ 600 VAC

• Protection: Thermal Magnetic

• Trip Functions: LI – Long-Time and Instantaneous

• Magnetic Tripping Current: 1700 A

• Magnetic Hold Current: 900 A

• Continuous Current Rating: 80%

• Rated Insulation Voltage (Ui): 750 V

• Rated Impulse Withstand Voltage (Uimp): 8 kV

• Utilisation Category: Category A

• AWG Range: AWG 14 to AWG 3/0 (Cu/Al)

• Local Signaling: Trip indicator (green)

• Mounting Mode: I-Line Bracket

• Electrical Connections:

  • Line: I-Line plug-in

  • Load: Mechanical lugs (AL150HD)

• Dimensions:

  • Height: 6.42 in (163 mm)

  • Width: 4.09 in (104 mm)

  • Depth: 3.39 in (86 mm)

• Net Weight: 4.85 lb (2.2 kg)

• Phase Connection: ABC

• Color: Black

• Approvals/Certifications: UL, CSA, NOM, IEC, CE

• Condition: New/Never Used Surplus

Key Features:

• High-interrupting 125A, 3-pole H-Frame molded case breaker

• Thermal magnetic LI trip unit for overload and short-circuit protection

• 25 kA interrupt rating at 600 VAC

• Dual-break rotating contacts reduce peak fault current

• I-Line plug-in design for fast panelboard installation

• Integral push-to-trip button for manual testing

• Suitable for demanding industrial and commercial applications

• Fully compliant with global electrical standards