NE221040 - 40Amp Circuit Breaker

NE221040 40Amp Circuit Breaker

The NE221040 40Amp Circuit Breaker is engineered to deliver dependable protection for existing electrical distribution systems that demand consistent performance and safety. Designed as a two-pole, 40 amp bolt-on circuit breaker, this unit helps safeguard equipment and wiring from damage caused by overloads and short circuits. Its thermal magnetic trip mechanism responds quickly to abnormal current conditions, while the molded case construction provides lasting durability in demanding residential, commercial, and light industrial environments. Built for compatibility with NE frame applications, the NE221040 offers a secure fit and stable operation where reliable circuit protection is critical.

Key Features and Benefits

• Two-Pole Configuration: Provides protection across both lines of a 120/240VAC system, ensuring balanced and complete circuit interruption.
• 40 Amp Rating: Ideal for branch circuit protection requiring consistent 40A performance.
• Thermal Magnetic Trip Unit: Combines thermal overload protection with instantaneous magnetic short-circuit interruption for dependable response.
• Bolt-On Mounting Design: Ensures a tight, secure installation that minimizes movement and enhances electrical continuity.
• Molded Case Construction: Built with high-quality materials to withstand everyday operational demands and maintain long service life.
• 10k A.I.C. Rating: Rated for 10,000 amps interrupting capacity at 120/240VAC, helping protect systems against high fault currents.

Technical Specifications

• Model Number: NE221040
  
• Amperage: 40 Amp
  
• Number of Poles: 2
  
• Voltage Rating: 120/240 VAC
  
• A.I.C. Rating: 10kA @ 120/240VAC
  
• Frame Type: NE
  
• Mounting Style: Bolt-On
  
• Dimensions: 2.75" W x 6.19" L x 3.38" D
  
• Weight: 5 lbs
  

Material Compliance and Certifications

• The NE221040 circuit breaker is manufactured using industry-compliant materials designed to meet established electrical safety standards. It is built to align with applicable performance and testing requirements for molded case circuit breakers, supporting safe integration into approved electrical systems.

Where It Works Best

• This 40 amp two-pole circuit breaker is well-suited for maintaining and servicing existing panelboards and distribution systems in residential, commercial, and light industrial settings. It performs reliably in applications where stable 120/240VAC power distribution is required, including branch circuits supporting HVAC equipment, lighting systems, and general-purpose loads. For facilities prioritizing safe electrical operation and dependable circuit interruption, the NE221040 provides the performance and protection essential to keeping systems running smoothly.