NAL361000 - 1000 Amp Circuit Breaker

NAL361000 - 1000 Amp Circuit Breaker

Looking for a high-capacity circuit breaker you can count on? The NAL361000 1000 Amp molded-case breaker delivers dependable protection for demanding commercial and industrial environments. It integrates thermal overload and magnetic short-circuit protection into a single molded housing, ensuring reliable operation under heavy electrical stress. Its classic NAL frame and feed-through configuration—with mounting legs on both the line and load sides—make it adaptable to a variety of installation layouts.

Key Features and Benefits

• High Interrupting Capacity: With ratings of 25,000 A at 600 VAC, 50,000 A at 480 VAC, and 100,000 A at 240 VAC, this breaker can handle serious fault currents without fail.
• Thermal–Magnetic Protection: Blends thermal sensing (for overloads) and magnetic trip (for short circuits) to shield your electrical system from multiple fault types.
• Molded-Case Design: Offers a compact, enclosed solution that resists environmental stresses, vibrations, and mechanical impacts.
• Feed-Thru Configuration: Allows power to pass directly through the unit, ideal for downstream distribution — with mounting legs on both sides for secure installation.
• Reliable Switching Life: Designed to maintain performance over long operational cycles, even in heavy-duty settings.

Technical Specifications

• Amperage: 1,000 A
  
• Number of Poles: 3
  
• Dimensions (W × L × D): 11.75″ × 19.50″ × 5.75″
  
• Weight: ~ 60 lbs
  
• Frame Type: NAL (Classic “old-style”)
  
• Interrupting Capacity (AIC):
  • 25,000 A @ 600 VAC
  • 50,000 A @ 480 VAC
  • 100,000 A @ 240 VAC

Material Compliance and Certifications

• Industry Standards: Built to industry standards for safety and performance, the NAL361000 breaker meets applicable regulatory certifications and quality controls.
• Testing and Quality: Every unit is tested for interrupting capacity, dielectric strength, and operational endurance to comply with power distribution system requirements.
  

Where It Works Best

• This breaker shines in commercial and industrial installations that require high-current switching and protection. Use it in main distribution panels, power centers, central plant powerrooms, or large HVAC and motor systems. Its feed-through design and dual-sided mounting make it especially useful for switchgear retrofits, parallel bus configurations, or systems requiring flexible layout options.