NB221020 - 20Amp Circuit Breaker

NB221020 - 20Amp Circuit Breaker

The NB221020 20A double pole circuit breaker is a straightforward, dependable option for protecting 120/240V electrical circuits. Designed with a thermal magnetic trip, it automatically shuts off power when a circuit is overloaded or when a short circuit occurs. That quick response helps protect wiring, connected equipment, and the overall panel from damage. With a 20 amp rating and a 10kA interrupting capacity, this breaker is commonly used in residential and light commercial applications where consistent, properly rated protection is required. The bolt-on design secures the breaker firmly in place, helping ensure a solid connection inside compatible panels.

Key Features and Benefits

• 20 Amp Capacity: Designed for circuits that require 20A overcurrent protection.
• Double Pole Configuration: Protects both legs of a 120/240V circuit, suitable for many 240V applications.
• Thermal Magnetic Trip: Handles both gradual overloads and sudden short circuits.
• Bolt-On Mounting: Fastens securely to the panel bus for a stable installation.
• 10kA Interrupting Rating: Rated for up to 10,000 amps at 120/240VAC.

Technical Specifications

• Model Number: NB221020
  
• Amperage Rating: 20 Amps
  
• Poles: 2
  
• Voltage: 120/240VAC
  
• Interrupting Capacity: 10kA @ 120/240VAC
  
• Frame Type: NB
  
• Trip Type: Thermal Magnetic
  
• Mounting Type: Bolt-On
  
• Dimensions: 2.00" W x 3.38" L x 2.31" D
  
• Weight: 1.75 lbs
  

Material Compliance and Certifications

• The NB221020 is built to meet recognized industry standards for molded case circuit breakers. When installed in compatible equipment and according to applicable electrical codes, it delivers reliable performance and dependable circuit protection.

Where It Works Best

• This 20 amp double pole breaker is typically used in residential and light commercial panels for 240V circuits. It’s often installed to protect loads such as water heaters, small HVAC units, and other equipment that requires a properly rated 20A, two-pole breaker in an NB frame panel.