NA3P40 - 40Amp Circuit Breaker

NA3P40 - 40Amp Circuit Breaker

The NA3P40 40 Amp circuit breaker is engineered to deliver dependable overcurrent protection for 240V electrical systems in residential and light commercial environments. Designed as a 3-pole Stab-Lok breaker, this unit provides consistent thermal magnetic protection to help guard against overloads and short circuits before they can cause equipment damage or safety hazards. With a 10kA interrupting rating, the NA3P40 is built to safely clear fault conditions and maintain system integrity. Its plug-in mounting style supports fast installation in compatible panels, while the clearly marked, color-coded handle simplifies identification and service. For electricians and facility managers who need a reliable 40A 3-pole circuit breaker that meets recognized safety standards, the NA3P40 offers performance you can count on.

Key Features and Benefits

• 40 Amp, 3-Pole Configuration – Ideal for protecting three-phase circuits and 240VAC applications requiring consistent overcurrent control.
• Thermal Magnetic Protection – Combines long-time overload protection with instantaneous short-circuit response for enhanced electrical safety.
• 10kA Interrupting Capacity – Designed to safely interrupt high fault currents and reduce the risk of equipment damage.
• Stab-Lok Plug-In Design – Allows for straightforward installation and secure panel connection.
• Color-Coded Handle – Makes ampere rating identification quick and easy during maintenance or troubleshooting.
• Durable Construction – Built for dependable performance in demanding electrical environments.
  

Technical Specifications

• Model Number: NA3P40
  
• Rated Current: 40 Amps
  
• Rated Voltage: 240V AC
  
• Number of Poles: 3-Pole
  
• Interrupting Rating: 10kA
  
• Mounting Type: Plug-In (Stab-Lok)
  
• Connection Type: Screw Terminal
  
• Wire Range: AWG 14 to AWG 1/0 Copper
  

Material Compliance and Certifications

• CSA Certified – Complies with Canadian Standards Association requirements for electrical safety and performance.
• RoHS Compliant – Meets Restriction of Hazardous Substances (RoHS) directives to limit harmful materials.
• REACH Compliant – Conforms to REACH regulations supporting environmental and human health protection.
• Green Premium Label – Supports environmentally responsible product standards and sustainability initiatives.
  

Where It Works Best

• The NA3P40 40A 3-pole circuit breaker is well-suited for use in residential and commercial electrical panels that require reliable branch circuit protection. It performs effectively in applications such as lighting systems, small motor loads, and three-phase distribution circuits operating at 240VAC. Whether installed in new construction or used as a replacement breaker in an existing Stab-Lok panel, this breaker provides the protection and performance needed to keep electrical systems operating safely and efficiently.