NA240 - 40Amp Circuit Breaker

NA240 - 40Amp Circuit Breaker

The NA240 40 amp double pole circuit breaker is designed for use in Stab-Lok load centers where dependable 120/240V circuit protection is required. This 2-pole breaker controls and protects both legs of a 240V circuit, shutting off power if an overload or short circuit occurs. With a 10 kA interrupting rating, it is built to handle typical residential and light commercial fault conditions. The plug-in design makes installation simple in compatible panels, and the screw terminals allow for a secure connection with copper conductors. For electricians and property owners replacing an existing 40A breaker, the NA240 offers a practical, no-nonsense solution.

Key Features and Benefits

• 40 Amp rating: 40 Amp rating for higher-load branch circuits
• Double pole (2P) configuration: Double pole (2P) configuration for 240V applications
• Rated for 120/240V AC systems: Rated for 120/240V AC systems
• 10 kA interrupting capacity: 10 kA interrupting capacity
• Plug-in mounting: Plug-in mounting for compatible Stab-Lok panels
• Screw terminal connections: Screw terminal connections for copper wire
• Accepts AWG 14 to AWG 2 copper conductors: Accepts AWG 14 to AWG 2 copper conductors
• Mercury-free and RoHS compliant: Mercury-free and RoHS compliant

Technical Specifications

• Product Type: Miniature Circuit Breaker
  
• Series: Stab-Lok
  
• Amperage Rating: 40A
  
• Voltage Rating: 120/240V AC
  
• Number of Poles: 2
  
• Interrupting Rating: 10 kA
  
• Mounting Type: Plug-in
  
• Terminal Type: Screw connector
  
• Wire Range: AWG 14–AWG 2 (Copper)
  
• Dimensions: 2.00 in (H) x 3.00 in (W) x 3.50 in (L)
  
• Weight: 10.08 oz
  

Material Compliance and Certifications

• CSA Certified: The NA240 is CSA certified, meeting established safety and performance standards.
• RoHS Compliant and Mercury-Free: It is also RoHS compliant, mercury-free, and part of Schneider Electric’s Green Premium program, reflecting attention to environmental considerations and regulatory requirements.

Where It Works Best

• This 40 amp Stab-Lok breaker is commonly used in residential homes, apartments, and light commercial buildings where 240V circuits power larger equipment such as water heaters, HVAC systems, or similar appliances. It’s well suited for breaker replacements, panel maintenance, or service upgrades in compatible Stab-Lok electrical panels.