NB221070 - 70Amp Circuit Breaker

NB221070 - 70Amp Circuit Breaker

The NB221070 70 amp circuit breaker is designed for dependable circuit protection in residential and light commercial electrical panels. This 2 pole, 120/240VAC breaker helps protect wiring and connected equipment from overloads and short circuits using a proven thermal magnetic trip system. Built on the NB frame and featuring a bolt-on mounting style, it offers a secure fit for panels designed for this configuration. Its compact size makes it a practical choice when replacing an existing breaker and keeping your system operating safely without unnecessary modifications.

Key Features and Benefits

• Thermal Magnetic Trip Unit: Responds to both prolonged overloads and sudden short circuits.
• 70 Amp, 2 Pole Design: Suitable for 120/240VAC applications requiring two-pole protection.
• Bolt-On Connection: Secures directly to the panelboard for a stable and reliable installation.
• 10kAIC Rating: Rated to interrupt up to 10,000 amps at 120/240VAC.
• NB Frame Construction: Designed for compatibility with panels that use the NB frame type.
  

Technical Specifications

• Model Number: NB221070
  
• Amperage Rating: 70A
  
• Number of Poles: 2
  
• Voltage Rating: 120/240VAC
  
• Interrupting Capacity: 10,000 AIC @ 120/240VAC
  
• Frame Type: NB
  
• Mounting Style: Bolt-On
  
• Trip Type: Thermal Magnetic
  
• Dimensions:
  • Width: 2.00"
  • Length: 3.38"
  • Depth: 2.31"
• Weight: 1.75 lbs
  

Material Compliance and Certifications

• This circuit breaker is manufactured using quality components that meet recognized electrical safety and performance standards. Each unit is tested to help ensure it operates within its rated specifications when installed in a properly rated panel and applied according to applicable electrical codes.
  

Where It Works Best

• The NB221070 is commonly used in residential homes, apartment buildings, and light commercial properties that operate on 120/240VAC systems. It’s a practical solution for maintenance teams and electricians who need a straightforward replacement breaker that fits existing NB frame panelboards and provides consistent, reliable protection.