LHL36350 - 350 Amp Circuit Breaker

LHL36350 - 350 Amp Circuit Breaker

Protect your critical electrical systems with the Square D LHL36350 circuit breaker, a high-performance unit crafted for demanding industrial and commercial environments. Engineered by Schneider Electric, this 3-pole thermal-magnetic breaker delivers dependable protection against overloads and short circuits while fitting neatly into many power distribution schemes. Its combination of safety, flexibility, and performance make it a wise choice for facility engineers and electrical contractors who can’t afford downtime.

Key Features and Benefits

• High fault-current tolerance: rated for 25 kA at 600 VAC and up to 50 kA at 250 VDC, the LHL36350 handles large short-circuit events without fail.
• Thermal-magnetic protection: each pole includes both thermal overload and magnetic short-circuit sensing, giving you broad protection across fault types.
• Manual push-to-trip button: allows safe testing or manual tripping without exposing live parts; useful during maintenance or commissioning.
• Flexible mounting options: compatible with both unit mount and I-Line formats, letting you adapt to different panel layouts.
• Compact footprint, strong design: with dimensions of 11″ × 6″ × 5.84″, it fits many standard panel spaces while maintaining a rugged build suited for industrial environments.
  

Technical Specifications

• Rated Current: 350 A
  
• Number of Poles: 3 poles
  
• Voltage Rating: 600 VAC / 250 VDC
  
• Interrupting Capacity:
  • 25 kA @ 600 VAC
  • 50 kA @ 250 VDC
• Magnetic Trip Current: 3,500 A
  
• Electrical Connections: Line & load lugs
  
• Terminal Tightening Torque: 115.06 lbf·in (13 N·m) for wire ranges 42–304 mm² and 42–127 mm²
  
• Dimensions:
  • Height: 11 in (279.4 mm)
  • Width: 6 in (152.4 mm)
  • Depth: 5.84 in (148.34 mm)

Material Compliance and Certifications

• UL 489, CSA, IEC certified: meets international standards for molded-case circuit breakers.
• RoHS / REACh compliant: aligned with global restrictions on hazardous substances.
• Green / eco considerations: includes environmentally mindful packaging and design with recyclable elements (e.g. cardboard packaging).
  

Where It Works Best

• This breaker shines in heavy industrial and commercial installations where reliability is nonnegotiable. Use it to protect distribution panels in manufacturing plants, data centers, extensive retail facilities, hospitals, or any environment with high electrical loads. The combination of high interrupting capacity and dual-mode protection gives it the flexibility to handle both persistent overloads and sudden short circuits.