NA250 - 50Amp Circuit Breaker

NA250 - 50Amp Circuit Breaker

The NA250 50 Amp Stab-Lok circuit breaker is designed to provide reliable overcurrent protection in 120/240V electrical systems. This 2-pole breaker helps protect wiring and connected equipment from overloads and short circuits by disconnecting both poles at the same time. With a 10 kA interrupting rating, it is built to handle significant fault currents while helping maintain the safety of your electrical panel. The plug-in design allows for straightforward installation in compatible Stab-Lok load centers, making it a practical choice for maintenance, repairs, or panel updates.

Key Features and Benefits

• 50 Amp Rating: Suitable for circuits requiring up to 50 amps of protection.
• 120/240V AC: Designed for standard residential and light commercial split-phase systems.
• 2-Pole Design: Trips both poles simultaneously for added safety on 240V and multi-wire branch circuits.
• 10 kA Interrupting Capacity: Helps safely clear high fault currents.
• Plug-In Mounting: Installs directly into compatible Stab-Lok panels.
• Screw Terminals: Provides secure wire connections.
  

Technical Specifications

• Model: NA250
  
• Amperage: 50 Amp
  
• Voltage: 120/240V AC
  
• Poles: 2
  
• Interrupting Rating: 10 kA
  
• Mounting Type: Plug-In
  
• Wire Range: AWG 14 to AWG 2 (Copper)
  

Material Compliance and Certifications

• CSA Certified: The NA250 circuit breaker is CSA certified, meeting recognized safety standards for circuit protection devices.
• Environmental Compliance: It is mercury-free and complies with RoHS requirements (with applicable exemptions), supporting environmentally responsible manufacturing practices.
  

Where It Works Best

• This 50A 2-pole Stab-Lok breaker is commonly used to protect 240V appliances, larger branch circuits, and other higher-load applications in residential and small commercial electrical systems. It is well-suited for replacing an existing compatible breaker where proper fit and dependable circuit protection are required.