LAL36125 - 125 Amp Circuit Breaker

LAL36125 - 125 Amp Circuit Breaker

Step into dependable protection with the Square D LAL36125 circuit breaker — designed for demanding electrical environments where stability and safety are nonnegotiable. This three-pole breaker is rated for 125 A at up to 600 VAC with a 22 kA interrupting rating, plus 10 kA at 250 VDC, making it a flexible choice for both AC and DC systems. Whether you're installing in industrial, commercial, or heavy-duty applications, this breaker delivers consistent performance you can depend on day after day.

Key Features and Benefits

• High Fault-Current Handling: With a 22 kA interrupting capacity (600 VAC) and 10 kA (250 VDC), this unit can safely interrupt high fault conditions, protecting downstream equipment and wiring.
• Thermal-Magnetic Trip Unit: Combines overload sensing (thermal) with instantaneous short-circuit protection (magnetic) for reliable response across a range of fault types.
• Manual / Automatic Operation: Offers push-to-trip manual test capability along with automatic trip action, supporting safer maintenance and testing procedures.
• Flexible Mounting: Supports unit mount and I-Line configurations, giving you installation flexibility in different panel layouts.
• User-Friendly Design: Clear terminal labeling (AL400LA), standardized torque settings, and compact footprint simplify wiring and integration.
• Eco-Aware Materials: Built with halogen-free plastics, RoHS and REACH-compliant components, and a Green Premium approach, minimizing environmental impact.
  

Technical Specifications

• Trip Technology: Thermal-Magnetic
  
• Line Rated Current: 125 A
  
• Number of Poles: 3P
  
• Mounting Style: Unit Mount
  
• Interrupting Capacity:
  • 22 kA @ 600 VAC
  • 10 kA @ 250 VDC
• Magnetic Hold / Trip: Hold: 625 A, Trip: 1,250 A
  
• Electrical Connection: Lug (line & load)
  
• Terminal Designation: AL400LA
  
• Tightening Torque: 115.06 lbf·in (≈ 13 N·m)
  
• Cable Range: AWG 1 to 600 kcmil
  
• Dimensions (H × W × D): 11″ × 6″ × 5.84″ (279.4 × 152.4 × 148.34 mm)
  
• Rated Use: HACR (Heating, Air Conditioning, Refrigeration)
  

Material Compliance and Certifications

• Safety Listings: Meets IEC, CSA, and UL standards, ensuring it aligns with rigorous industrial safety norms.
• Environmental Compliance: Fully RoHS and REACH compliant; uses halogen-free plastics and PVC-free materials.
• Green Premium Labeling: Offers transparency about its environmental impacts and sustainability credentials.
  

Where It Works Best

• This breaker excels in settings where high current demands and reliability are essential. Ideal environments include:
  
  • Manufacturing facilities with heavy machinery
  • Commercial power distribution panels in office buildings
  • HVAC, refrigeration, and chilled water systems
  • Renewable energy inverters or DC/AC hybrid systems
  • Large electrical assemblies requiring dependable overload and short-circuit protection