NB232020 - 20Amp Circuit Breaker

NB232020 - 20Amp Circuit Breaker

The NB232020 is a 20 amp, three-pole bolt-on circuit breaker designed for use in 240V panelboards. It’s a dependable choice for protecting branch circuits in commercial buildings and residential properties where consistent performance matters. If you're replacing an existing NB frame breaker or handling routine maintenance, this unit is built to drop into compatible equipment without unnecessary adjustments. This breaker uses a thermal magnetic trip mechanism, meaning it responds to both gradual overloads and sudden short circuits. In real-world terms, that helps protect wiring and connected equipment from overheating or fault damage. The bolt-on mounting style provides a firm connection to the panel bus, which many electricians prefer for long-term reliability compared to plug-in styles. Rated at 10kAIC at 240VAC, the NB232020 is suitable for standard electrical distribution systems where dependable fault interruption is required. Its compact footprint helps conserve panel space while still delivering the protection you expect from a three-pole breaker.

Key Features and Benefits

• 20 amp rating for branch circuit protection
• Three-pole design for multi-phase applications
• Bolt-on installation for a secure, stable fit
• Thermal magnetic trip for overload and short-circuit protection
• 10kAIC interrupting capacity at 240VAC
• Compact size for efficient panel layout

Technical Specifications

• Model Number: NB232020
• Amperage: 20A
• Poles: 3
• Voltage Rating: 240VAC
• Interrupting Rating: 10kAIC
• Frame Type: NB
• Mounting Type: Bolt-On
• Dimensions: 3.00" W x 3.38" L x 2.31" D
• Weight: 2.75 lbs

Material Compliance and Certifications

• The NB232020 is manufactured to meet established industry safety and performance standards for molded case circuit breakers. When installed in properly rated panelboards and according to applicable electrical codes, it provides safe and consistent operation.

Where It Works Best

• This breaker is commonly used in commercial facilities, light industrial buildings, and residential properties that utilize compatible NB frame panelboards. It’s a straightforward replacement option when you need reliable 20 amp, three-pole protection without redesigning the system.