Q1B2100 - 100 Amp Circuit Breaker

Q1B2100 - 100 Amp Circuit Breaker

When you're replacing a breaker in existing equipment, getting the details right matters. The Q1B2100 is a 100-amp, 2-pole Q1B bolt-on circuit breaker with thermal-magnetic operation. It's rated 10 kA I.C. at 120/240 VAC and requires four spaces. Measuring 6.38 inches high, 1.5 inches wide, and 2.31 inches deep, this breaker is intended for compatible equipment that calls for the Q1B configuration. It's a straightforward choice for maintaining legacy electrical systems when you need to match the original breaker's amperage, poles, voltage, interrupting rating, mounting style, and physical fit. The bolt-on connection is another important part of that match. For the right equipment and application, the Q1B2100 provides the form and function needed to keep an existing system operating as intended—and it's built to last.

Key Features and Benefits

• 100-amp, 2-pole configuration for applications requiring these specific electrical characteristics.
• 10 kA I.C. at 120/240 VAC provides the stated interrupting rating for compatible systems.
• Thermal-magnetic operation provides overload and overcurrent protection within the breaker's rated limits.
• Bolt-on mounting matches equipment designed to accept Q1B bolt-on breakers.
• Requires four spaces, an important detail when checking the available room in existing equipment.
• Q1B form and fit make this breaker useful for maintaining compatible legacy installations.
• Built to last when properly installed and used within its specified ratings.

Technical Specifications

• Part Number: Q1B2100
  
• Type: Q1B
  
• Breaker Type: Bolt-On Thermal Magnetic
  
• Amperage: 100 A
  
• Poles: 2
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10 kA
  
• Mounting: Bolt-On
  
• Spaces Required: 4
  
• Dimensions:
  • Height: 6.38 in.
  • Width: 1.5 in.
  • Depth: 2.31 in.

Material Compliance and Certifications

• No specific material compliance information or agency certifications were included in the available specifications for the Q1B2100. Because those details haven't been provided, UL, CSA, RoHS, or other certification claims should not be assumed.
• If your installation requires a specific listing or material compliance standard, check the breaker markings and the appropriate product documentation before use.

Where It Works Best

• The Q1B2100 circuit breaker is a good fit for maintenance and replacement work involving compatible legacy electrical equipment designed for Q1B bolt-on breakers. It's particularly relevant when the existing application calls for a 100-amp, 2-pole breaker rated 10 kA.I.C. at 120/240 VAC and requires the same four-space configuration.
  
• One practical point is worth emphasizing: don't choose a replacement breaker based on amperage alone. Check the Q1B type, pole count, voltage, A.I.C. rating, bolt-on mounting arrangement, dimensions, and four-space requirement against the existing equipment. Those details help determine whether the breaker is appropriate for the application.
  
• Installation and final compatibility should be verified by qualified electrical personnel in accordance with applicable electrical codes and equipment requirements.