QHB120 - 20Amp Circuit Breaker

QHB120 - 20Amp Circuit Breaker

The QHB120 is a 2-pole, 20-amp bolt-on circuit breaker designed for use in 120/240VAC electrical distribution systems. With a 65kA interrupting rating, it's intended for applications where higher available fault current calls for added protection. The bolt-on design provides a secure connection to compatible panelboards, making it a practical choice for both replacement jobs and new installations. Whether you're maintaining an existing electrical system or replacing a worn breaker, the QHB120 offers the ratings and configuration needed for reliable circuit protection without taking up unnecessary panel space.

Key Features and Benefits

• 20 Amp current rating
• Two-pole configuration for 120/240VAC circuits
• Bolt-on mounting for a secure panelboard connection
• 65kA interrupting capacity at 120/240VAC
• Compact design for compatible panelboards
• Helps protect electrical circuits against overloads and short circuits
• Suitable for commercial and industrial electrical systems

Technical Specifications

• Part Number: QHB120
  
• Type: QHB
  
• Mounting Style: Bolt-On
  
• Poles: 2
  
• Amperage: 20A
  
• Voltage: 120/240VAC
  
• Interrupting Rating: 65kA @ 120/240VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 0.75 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• The QHB120 is manufactured for use in electrical distribution equipment and should be installed in accordance with applicable electrical codes and manufacturer recommendations.
• Before installation, verify compatibility with your panelboard and the requirements of your specific application.

Where It Works Best

• The QHB120 is commonly used in commercial and industrial panelboards where a 20-amp, 2-pole bolt-on breaker with a 65kA interrupting rating is required. It's well suited for branch circuit protection in facilities where available fault current exceeds the limits of standard interrupting ratings, making it a good fit for manufacturing plants, commercial buildings, institutional facilities, and similar environments.