NJL631150 - 150Amp Circuit Breaker

NJL631150 - 150Amp Circuit Breaker

The NJL631150 150 amp circuit breaker is commonly used in commercial and industrial electrical systems where dependable three-phase protection is required. This is a thermal magnetic molded case breaker with a bolt-on design, built to stay firmly in place once installed. It’s rated for continuous operation at 40°C and performs consistently across multiple voltage levels, making it a practical choice when maintaining or replacing breakers in existing panels. Electricians and facility managers often select this model when they need a breaker that does its job without added complexity.

Key Features and Benefits

• Three poles for three-phase systems: Designed to protect all phases evenly in commercial and industrial power setups.
• Thermal magnetic trip unit: Responds to overloads through heat and reacts quickly to short circuits through magnetic sensing.
• Bolt-on mounting: Helps keep the breaker seated securely, reducing the chance of loose connections over time.
• Load-side lugs included: Allows for straightforward wiring and dependable termination during installation.

Technical Specifications

• Amperage: 150A
• Poles: 3
• Frame: NJJ
• Interrupt Rating:
  • 42kA at 240 VAC
  • 30kA at 480 VAC
  • 22kA at 600 VAC
• Operating Temperature: 40°C
• Type: Thermal Magnetic, Molded Case
• Size: 8.25 in W × 10.13 in L × 3.88 in D
• Weight: 23 lbs
• Terminals: Load-side lugs

Material Compliance and Certifications

• This circuit breaker meets established electrical safety and performance standards and is UL and CSA certified for use in commercial and industrial applications.

Where It Works Best

• The NJL631150 is a good fit for facilities running three-phase power where consistent overcurrent protection is required. It’s commonly used in manufacturing spaces, commercial buildings, and other installations that operate at 240, 480, or 600 volts. This breaker works especially well when keeping an existing system in service while maintaining current safety expectations.