QHB320 - 20Amp Circuit Breaker

QHB320 - 20Amp Circuit Breaker

The QHB320 is a 20 Amp, 2-pole bolt-on circuit breaker used in 120/240VAC electrical distribution systems. It features a 65kA interrupting rating, making it suitable for installations where higher fault current is available. The bolt-on mounting style provides a fixed connection to the panelboard, helping keep the breaker securely in place after installation. This breaker is typically installed as part of a branch circuit to protect wiring and connected equipment from overloads and short circuits. Its compact dimensions allow it to fit in compatible panelboards without occupying more space than necessary. Whether you're replacing an existing breaker or maintaining an electrical system, the QHB320 is built for applications that require a 20-amp, 2-pole breaker with a high interrupting capacity.

Key Features and Benefits

• Part number: QHB320
• Type QHB molded case circuit breaker
• 20 Amp current rating
• 2-pole configuration
• Bolt-on mounting
• 65kA interrupting capacity at 120/240VAC
• Provides overload and short-circuit protection
• Compact size for compatible panelboards

Technical Specifications

• Part Number: QHB320
  
• Type: QHB
  
• Mounting Style: Bolt-On
  
• Poles: 2
  
• Amperage: 20 Amps
  
• Voltage: 120/240VAC
  
• Interrupting Rating: 65kA @ 120/240VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 2.25 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Molded case circuit breaker
• Intended for installation in compatible equipment
• Install in accordance with applicable electrical codes and manufacturer requirements
• Installation should be performed by qualified personnel

Where It Works Best

• The QHB320 is commonly found in commercial, industrial, and institutional electrical systems that require a 20 Amp, 2-pole bolt-on breaker. It can be used in panelboards serving lighting, receptacle, and general branch circuits where a 65kA interrupting rating is required.