Q1B220 - 20 Amp Circuit Breaker

Q1B220 - 20 Amp Circuit Breaker

The Q1B220 is a 20-amp, 2-pole bolt-on circuit breaker for electrical equipment designed around the Type Q1B configuration. It uses a thermal-magnetic trip and carries a 10 kA I.C. rating at 120/240 VAC. If you're replacing an existing Q1B220, it's worth checking the entire breaker specification rather than matching only the 20 amp rating. This model measures 6.38" high x 1.5" wide x 2.31" deep and takes up four spaces. The bolt-on connection, physical size, pole configuration, voltage, and interrupting rating all play a part in determining whether it fits the application. For older equipment designed to use this breaker, keeping the original specifications matched can make maintenance much more straightforward. The Q1B220 is built to last and intended to provide the form and function required by compatible electrical systems.

Key Features and Benefits

• 20A, 2-pole breaker for equipment requiring this particular configuration
• Type Q1B design
• Bolt-on connection rather than a plug-in mounting style
• Thermal-magnetic trip operation
• 10 kA.I.C. at 120/240VAC
• Requires four spaces
• Measures 6.38" H x 1.5" W x 2.31" D
• Useful for maintaining compatible legacy electrical equipment where the original breaker specifications need to be matched

Technical Specifications

• Part Number: Q1B220
  
• Type: Q1B
  
• Amperage: 20A
  
• Number of Poles: 2
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10k
  
• Trip Type: Thermal Magnetic
  
• Mounting: Bolt-On
  
• Height: 6.38 in.
  
• Width: 1.5 in.
  
• Depth: 2.31 in.
  
• Spaces Required: 4
  

Material Compliance and Certifications

• No specific material compliance, agency certification, or listing information was included with the supplied Q1B220 specifications. If a job requires a specific certification or compliance standard, check the markings on the breaker and the applicable equipment documentation rather than assuming compliance based on the Q1B part number.

Where It Works Best

• The Q1B220 20-amp circuit breaker is a fit for compatible legacy electrical equipment that uses a Type Q1B, 2-pole bolt-on breaker with these ratings and dimensions. It's the kind of breaker you look for when the goal is to keep an existing system in service while staying with the required breaker configuration.
  
• When comparing it with the breaker you're replacing, look at the whole picture: Q1B type, 20-amp rating, two poles, 120/240VAC, 10k A.I.C., bolt-on mounting, four-space requirement, and physical dimensions. Two breakers can share the same amperage without being interchangeable.
  
• Final compatibility should be verified against the electrical equipment requirements and breaker markings. Installation should be handled by a qualified electrical professional and performed in accordance with applicable electrical codes.