QHB220 - 20Amp Circuit Breaker

QHB220 - 20Amp Circuit Breaker

The Square D QHB220 is a 2-pole, 20-amp bolt-on circuit breaker designed to provide dependable overcurrent and short-circuit protection in commercial and industrial electrical distribution systems. Built as part of the trusted QHB series, this breaker features a 65kA interrupting rating at 120/240VAC, making it well-suited for applications where higher available fault current requires a breaker with increased interrupting capacity. Its bolt-on mounting design creates a secure mechanical and electrical connection, helping maintain reliable performance in panelboards and distribution equipment. Whether you're replacing an existing breaker during maintenance or restoring electrical equipment to service, the QHB220 delivers the performance professionals expect from genuine Square D components while helping protect branch circuits and connected equipment. Developed with reliability and long-term service in mind, this breaker is an excellent choice for facilities that require dependable circuit protection and compatibility with QHB-series electrical systems.

Key Features and Benefits

• Genuine Square D QHB Series circuit breaker
• 20 Amp current rating for branch circuit protection
• 2-pole configuration for 120/240VAC applications
• 65kA interrupting capacity (A.I.C.) at 120/240VAC for high fault-current environments
• Bolt-on mounting provides a secure installation and reliable electrical connection
• Designed to protect electrical systems from overloads and short circuits
• Suitable for commercial, industrial, and institutional electrical distribution systems
• Ideal for maintenance, repair, and replacement projects requiring a compatible QHB breaker

Technical Specifications

• Manufacturer: Square D
  
• Part Number: QHB220
  
• Type: QHB
  
• Mounting Style: Bolt-On
  
• Poles: 2
  
• Amperage: 20 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating (A.I.C.): 65kA @ 120/240VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 1.5 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• The Square D QHB220 is manufactured to meet applicable industry standards for molded case circuit breakers.
• Compatibility, certifications, and code compliance should always be verified against the equipment manufacturer's documentation and local electrical codes before installation.
• Installation and servicing should be performed by qualified electrical personnel.

Where It Works Best

• The Square D QHB220 is an excellent fit for commercial buildings, industrial facilities, manufacturing plants, institutional properties, and other electrical distribution systems that require a 20A, 2-pole bolt-on circuit breaker with a 65kA interrupting rating. It is well suited for protecting branch circuits in panelboards where high available fault current requires a breaker with greater interrupting capability while maintaining dependable everyday operation.