HDA36125 - 125 Amp Circuit Breaker

HDA36125 - 125 Amp Circuit Breaker

The Schneider Electric HDA36125 is a 125 Amp, 3-pole PowerPacT H circuit breaker for compatible I-Line distribution equipment. It’s a common choice when your existing H-frame breaker needs to be replaced without changing the panel layout, conductor arrangement, or basic electrical setup.

This model uses a thermal-magnetic trip unit. The thermal element responds to sustained overloads, while the magnetic element reacts quickly to short-circuit current. Because the protection is factory calibrated, there are no electronic trip settings to configure during installation.

Key Features and Benefits

• 125 Amp, 3-pole molded case circuit breaker
• Schneider Electric PowerPacT H series
• Thermal magnetic overload and short-circuit protection
• I-Line mounting for compatible distribution equipment
• Mechanical load-side lugs
• Accepts copper or aluminum conductors
• Dual-break rotating contacts help limit peak fault current
• Built-in push-to-trip button for manual testing
• 14kA interrupting capacity at 600VAC
• 80% continuous current rating
• HACR rated
• Suitable for isolation under applicable IEC requirements

Technical Specifications

• Manufacturer: Schneider Electric
  
• Catalog Number: HDA36125
  
• Series: PowerPacT H
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: H-Frame
  
• Current Rating: 125 Amps
  
• Poles: 3
  
• Trip Unit Technology: Thermal Magnetic
  
• Control Type: Toggle
  
• Continuous Current Rating: 80%
  
• Phase Connection: ABC
  
• Frequency: 50/60 Hz
  
• Voltage Rating: Up to 600VAC under UL ratings
  
• IEC Operational Voltage: Up to 690VAC
  
• Interrupting Capacity:
  • 25kA at 240VAC
  • 18kA at 480VAC
  • 14kA at 600VAC
  • 20kA at 250VDC
• Line Connection: I-Line
  
• HACR Rated: Yes
  
• Suitable for Isolation: Yes
  
• Utilization Category: Category A
  
• Dimensions:
  • Height: 6.4 in
  • Width: 4.09 in
  • Depth: 3.4 in
• Mounting Height: 4.5 in
  
• Weight: 4.9 lb
  

Material Compliance and Certifications

The HDA36125 is UL listed, CSA certified, NOM certified, and CE marked. It also complies with applicable NEMA, NOM-003-SCFI-2000, and IEC 60947-2 requirements.

The front cover carries an IP40 rating under IEC 60529, and the breaker is classified for Pollution Degree 3 under IEC 60947-1.

Where It Works Best

• Schneider Electric PowerPacT H I-Line panelboards
• I-Line switchboards
• Commercial three-phase distribution systems
• Industrial electrical equipment
• Manufacturing and process facilities
• HVAC and HACR branch circuits
• Motor and machinery circuits within the breaker’s ratings
• Control panels and auxiliary equipment
• Maintenance and retrofit work
• Replacement of matching PowerPacT H I-Line breakers